I hope the setons clear things up for you! Doing a whole new jpouch would concern me not only due to risk of fistulas coming back but also losing another foot of small bowel/digestion.
My ileostomy is on the right, same as 30 years ago. I will add that there are tons of new products, both in the super wide range of appliances but also wraps, undies w pouches, stealth belts etc that make ostomies much easier than 30 years ago!
Sounds like you have a good mental attitude. If you say “ what’s the worst that can happen” and you can live with that, for me that gives me peace of mind and reduces stress.
All the best! Feel free to ask any other questions as you go forward. Happy to share whatever I can.