I had the same decision to make! I hope I can help.
I had an induction (age 36) with my first because my waters broke first and contractions didn't start quick enough. Overall a great experience. When they inserted the pessary it did hurt (a very sharp stabbing pain) but I didn't have time to worry about it because I wasn't expecting it. The rest of the labour was okay, pretty good in fact. I had an epidural towards the end which I think was the right decision and meant I didn't feel any further examinatins. Quick recovery. I couldn't believe it had gone so well. The midwifes were all really nice, I had my own room and we were home the next day. Lovely experience.
I was scheduled to have an induction with my second baby if I went over my due date because I was 40. After the first time, I was fine with this after my previous experience. I did go over my due date. They kept re-scheduling my induction because the hospital was busy. This was stressful and I wasn't expecting it. When they finally tried to induce me at 3am after making me wait for hours and hours in a very hot waiting room, I couldn't tolerate the procedure. The pain was unbearable. I tried really hard to relax and go with it because I wanted to go into labour, but even with gas and air and another midwife talking to me (at my head end!) to try to distract me, the other midwife couldn't get the pessary in because I was so tense and ahem, 'unripe'. She wanted to leave me for 2 hours until 5am and try again but I could face it. I have no idea why it hurt so much, apparently it shouldn't. I'm usually good with pain. Anyway, I went home and decided to have an elective c-section. Booked to see a consultant the day after that and she agreed to it. I explained the situation and said that I would refuse any further internal procedures and therefore wanted a c-section. The consultant was really good. She explored the pros and cons and tried to find a solution to make the induction less traumatic, but by that time I just couldn't face any more insertions. I think I had PTSD!
The c-section was okay but what I hadn't anticipated was the referred shoulder pain from trapped air when they do the operation. Apparently lots of people have it, but I hadn't heard of it. I was expecting the recovery to be slow and pain in the wound, but the pain in my shoulder meant I could hardly move in bed. It gradually got better with peppermint tea, but for a few days it was really bad. I got stuck in bed and stuck in a chair unable to move! If I hadn't had the shoulder pain, it would have been okay and the right decision. But with the shoulder pain, I'm not sure. There's also a weird bit where after the baby is born they put her/him around your neck a bit like a scarf which was a bit weird and painful. The whole thing is strange and unfamiliar. Surgical I guess.
With hindsight, I think I would have been better off asking for a really experienced midwife to induce me, with a different type of pessary (there are different types apparently) and relaxation/breathing exercises. And I think I could have tolerated the internal examinations if it wasn't 3am in the morning and after 2 days of having my induction re-scheduled and told to come back in 2 hours several times. I was exhausted, frightened and pissed off. The hospital were pretty dreadful overall and so I also wanted the c-section to regain some control and get out of there.
A c-section gives you an element of control and avoids internal examinations but can result in other unplesant things, like shoulder pain and complications. So I think it all depends.
It sounds like you really want to avoid the internal examinations and I absolutely understand this, so an elective c-section might be best for you. Deciding now will give you time to prepare yourself, which is good. Take peppermint tea just in case! They should agree to an elective c-section if you can't tolerate/will refuse any internal examinations. They may try to persuade you otherwise, but stand your ground. It's really good that you are thinking ahead because induction seems to be recommended for all sorts of reasons.
Good luck, I hope this helps.