Kim3, I have not been here long enough to have seen precedents of motor power and your predicted weight distribution.
I did drive a replica GT40 with a VW flat four behind the axle and the front end did not inspire confidence. Despite auxiliary weight, understeer and brake lock-up were issues.
It was not an impressive build in all regards, but lessons were learned.
Thanks for the update. I did find the 85 series Tesla has the power I mentioned. Steep learning curve for me.

The Tesla drive gears are likely not straight cut, helical is likely. I have no experience running helicals backwards. I would be concerned about gear durability despite revised lubrication.
jim