retaining mech brakes in 1/8 buggy conversions

[pinolelst]

I see most if not all the buggy e-conversions do away with the mechanical brakes and rely solely on the electric motor/esc to do the braking...I can see the reasoning..lighter weight but the downside is hotter electrics.
Is it just that or do most 36mm/540 motor cans conflict with the brake holders as well ??

just priming myself for the Matrix conversion and the possible problems I might encounter since I'd like to keep the mechanical brakes if I can find the room for the servo amongst the brushless lipo system.
thanks in advance...

pinolelst