As someone that has converted a few nitro RC's to electric the motor mount plate is one of the hardest things to get right. I wasted a lot of money(and do mean wasted I might have well just started it on fire), and time in plenty of failed efforts as unless you have access to a machine shop you will almost always have some flex, or imperfection in the mount that would cause the motor to shift. This was extremely true when I did it on a Savage which is a twin plate setup similar to the tower terror. Then there is how will you mount the battery to contend with. I ended up pretty much scrapping all the electric conversion RC's that I made motor plates for as when they worked they performed poorly vs purpose made ones (even the cheap ones) due to the weight distribution, and pinion alignment/shifting issues.
Not trying to dissuade you if you feel up for it, but do know the challenges.
Now if there was a pre-made mount then yea those can perform quite well as I did a few that had pre-made mounts that could royally rip.
Now no idea how well something like this
https://www.amainhobbies.com/tekno-r...kr4140/p138743 would work