I didn't have my pouch as long but I had it removed without having a barbie (Ken) butt.
I don't know if they can do this in your case. Doesn't hurt to ask if they can leave that all in place
Being that my surgeon removed and left me with an anal canal sewed from the inside I didn't have to deal with having that part removed.
But in doing that I healed rather quickly and was back to work in eight weeks I could have went back at six weeks but I didn't want to go back to work.
I wish you well.
Richard.