NB you might want to bear in mind when reading this that I have tokophobia. I have attended NCT classes and hypnobirthing classes to try to feel more positive about vaginal births, but everything they said just frightened/put me off more and more.
I was in a similar position to you (currently 32 weeks).
Told my GP and midwife I wanted to discuss ELCS. They both said "oh right", averted their eyes and changed the subject 
Ended up being referred to clin psychologist for support with antenatal anxiety and depression. Obviously the topic of labour/birth came up. Clin psych listened to me, then explained that in our NHS Trust, women who request ELCS are routinely referred to the psychology service for assessment first (
) but that, luckily enough, I was there already and she was 100% happy to support my request.
This was because I had explained my several, long-standing reasons for wanting one, shown that I had a good understanding of the relative risks, shown that I had a good understanding of what recovery was likely to be like and that I had support around me that would enable me to manage.
She referred me to the boss consultant. I was pretty anxious prior to this appointment (surprise). I have heard many stories of the NHS being obstructive to ELCS, despite the Nice guidelines in this area being very clear. Anyway, consultant was lovely, said it was my body and up to me. I asked her about specific risks and she replied that they're highly unlikely to be an issue for someone with a healthy BMI, which I have.
I now have an appointment booked for 35 weeks at which a date will be set for week 39.
My DH's mantra throughout has been "whatever you want to do, I will support you."
quite idealistic views of vaginal birth - he sees is as natural and therefore the best option
I guess maybe he doesn't know that 90% of first time mothers have some tearing, nor has he researched statistics on post-natal incontinence. He also probably doesn't know much about 3/4 degree tears, the recovery, and the impact they can have on quality of life. He might not know much about birth trauma and its association with PND either.
My Dsis suffered injuries during the (vaginal) birth of her first child from which she has yet to recover, physically or mentally. Her child is 10 years old. People talk about the lengthier recovery from a CS, but that really depends what you're comparing it to. And if I have to have a cut/scar, I'd rather have it across my lower abdomen than my vagina/perineum.
he feels the risks with sections are higher
This is a common perception. Actually, we don't really know. All the data that compares CS with vaginal birth aggregates EMCS and ELCS into one category. This means that the CS group contains all the high risk mothers, and all the were-low-risk-but-then-the-birth-went-wrong mothers, whereas the vaginal delivery group by definition contains the vast majority of the low risk births. Which group would you expect to look riskier?
I have searched and searched for decent quality research that compares ELCS with EMCS and vaginal, and found nothing. That research has simply never been done. A lot of what is commonly said about CS Vs vaginal is not necessarily applicable to a healthy woman with an uncomplicated pregnancy who has an ELCS at term.
Cochrane reviews are my go-to when I want to find something out. This one comes with the warning that more research needs to be done, but the comparison of outcomes between the groups should be pretty reassuring to your DH. (no significant differences between the health of babies in each group, on a wide range of measures). The biggest risk to a mother in ELCS is infection. This risk is reduced very significantly by the administration of prophylactic antibiotics, and by having home circumstances that allow for proper wound care.
www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD000078.pub3/full?highlightAbstract=emerg%7Ccaesarean%7Celectiv%7Celective%7Ccesarean%7Ccesarian%7Cwithdrawn%7Cemergency%7Ccaesarian%7Celect