Doris I personally am planning my second birth, but I know a few women who have had lovely home births with their first babies.
I think it is perfectly realistic to plan a home birth for your first, provided you remain aware (in the back of your mind) that first timers have a higher transfer (to hospital) rate. Whilst bearing that in mind, remember that reasons for transfer are rarely down to an emergency - most likely to be because labour isn't progressing, or because you want some pharmaceutical pain relief.
DH and I attended a home birth workshop at our local hospital, run by midwives, and we were the only second-timers there! All
the other couples (6 more) were first timers, so you're not alone in your desire 
As for the other things I mentioned being in my plan:
Keeping internals minimal - be open minded about this. You don't know your body in labour yet, or if you might need that reassurance of knowing your progress. My MW in hospital first time round, kept internals minimal anyway, so I already know that approach works well for me.
Using TENS, water and Entonox instead of medical pain relief - At home you are likely to be calmer, more relaxed and feel safer. This in itself will reduce your pain perception. Home birth can be a natural form of pain relief in itself!
Having said that, again, remain open-minded. If things progress slowly, and you get tired, transfer for an epidural
could be what you need to get some rest before pushing. You can ask for a mobile epidural and have it turned right down before pushing.
Physiological (natural) 3rd stage - if all is well, and babe has arrived safely without intervention at home, then a physiological 3rd stage makes sense. Your body has done everything else, so will know what to do to finish things off and end the story naturally.
Babe can initiate breastfeeding to aid your uterus in beginning to shrink back down; the placenta can arrive in its own time; cord can be clamped once it's stopped pulsating.
If there has been any medical intervention, or the labour and or pushing has been very quick, it is often safer to opt for a managed/medical 3rd stage. Even so, it is possible to adopt a "wait and see" approach.
Cord-tie is down to having a pre-birth convo with the MWs.
Vit K is down to you, and best researched before making any decisions.
