The LSP chassis is a little wider than the buggy, I have mikes LSP motor mount in my buggy and I had to cut the corner off so it would clear the turn up on the narrower buggy chassis.
What's wrong with E clips?
Hot Bodies Lightning 2 Pro carbon, Mega 22/30/2, MMM, 4s3-5Ah.
Tamiya F201 carbon, Mamba 7700, MM, 2s A123 2.3ah.
Xray XT8, 1518, MMM, 4s5Ah.
Lots of boats.
fastelectrics.net