Amat, it really it's not hard to solve, depends on how badly you want it.. Nothing cannot fix with some spare parts from other car, or a Dremel...
Without the weight plate, the CG will be totally wrong.. Alot of people change to Lipo and thinks that now there car is lighter, it will be faster and better, which is sorry to say, not the case at all...specially on a ep offroad which weight balance are so important.
for Bmax4 users' ref in case you guys have ever seen...
Good for gear ratio ref....Circuit: Outdoor/Dry/Dusty/Low Traction/Bumpy
Nosram Storm Evo BL 6.5 using 81T/22T x 2.35 = 8.65