Hi Sage,
EMT Gel - i used it with a cover of a petrolatum dressing overwrap (petrolatum impregnated gauze) brand name of Xeroform it is a human use product. If you can keep the gel on there is great skin grown with it. I used it on Sprite's elbow after her cancer surgery and the less than stunningly successful skin graft.
EMT on wound, Xeroform around that, cotton wrap cvs brand worked, kerlix - 4" large roll of gauze wrap. I'd run a strip down the tail from high up, over the injured end, then back up and adhesive tape it to healthy fur/skin. then wrap more aounrd the bandaged end. It will hurt to remove but less than down near wound. Then vet wrap over the whole length of the gauze wrap. Then tray taping tail to the back leg.
Curler works too, and also a piece pipe insulation (needs to have ventilation holes though)