You can use those eco-disposables! Nature Babycare, cheaper than Pampers! They're compostable material except for the tabs (but unfortunately you can't actually compost them coz of the dangerous stuff in poo). I've had to resort to them as I couldn't cope with washing cloths on top of everything else I have to do (DH has old-fashioned views on "women's work" so I have to do every single thing in the house by myself, barring rare occasions when he's feeling helpful, and I'm NOT a skilled or efficient housewife

) Ahem...ranting a bit there, sorry! Anyway, I'm so happy eco-disposables exist or i'd feel awful.
BTW congratulations!!!!!! lol. Sorry, forgot to say that first. Fantastic news
I HATE HATE HATE the attitude of hospitals towards any slight difference to an ordinary single baby birth. It's oh so incovenient for them. There's no reason at all why you shouldn't have the twins at home with your birth history, it's daft. I've heard of women giving birth vaginally to twins when one or both of them was breech, it's perfectly possible. Our bodies are designed to deal with these things. It's often some outside stress which affect us psychologically and causes us to be physically unable to naturally deliver a breech baby or twins...or indeed a right-way-around single baby! stresses like stupid obstetricians telling us our vaginas will explode if we even attempt it.
Do you think you could afford a private midwife? I know they're expensive but it could be worth the cost, having someone who'll support what you want and encourage you positively, especially if you get your homebirth?
Or even just hiring a doula to be at the hospital birth as extra support and someone to fight your corner if they try to make you have a cesarean?
When I was pregnant last time I was reading books by Ina May Gaskin, an experienced natural birth midwife in the US. Good if you want some inspiration and positivity about birthing any kind of baby naturally. She's got a few books but I think but if you read 'Ina May's Guide to Childbirth' it covers most of the stuff in the old books. I just found it really inspiring to read about women achieving "impossible" births, such as natural delivery of twins and breech babies, without drugs and without episiotomies.