That particular motors off an electric scooter, runs on 24v and the starting current current is kinda fierceas it can slap an 'Electronize' ESc into submission, requiring a replacement. They can supply a suitable ESC with external relays that are much more suitable with a motor of this type. I use one in my TID and since fitting the new version of ESC have had no problems.
Pushers like Egrete would appear to suit your purposes as they are quick to build being rather slab sided, and will hold a decent battery. For a bow thruster i would forget the graupner type and fit on that Poll and MiniSteve use, home made but costs very little to make and has bags of power.
Single prop in a big nozzle should still be ok, but Egrete is twin screw really, but who would know...unless you have a radio controlled diver in your pond?