Thought about skimming the buffer, the walls are 3.4mm thick and was considering taking off 1.4mm off, but I'll leave that as a last option...
Don't know if its an overkill (probably it is from your comment Alex) the side armour is 20mm hdpe with 4mm gr5Ti bolted on, a precautionary measure after seeing LS4, NST, InertiaXL and all the spinning rest in action...
Maybe halving the 20mm hdpe to 10mm I'll still be safe