From an aircraft modeller seeking help from my car modelling cousins: Can anyone point me to a source for diamond plate plastic sheets in 1/24 or 1/25 scale? I've tried all my usual big web based retailers and googled till my fingers got numb. No luck. Several companies (JTT and Plastruct) produce these sheets, but not in the scale I need. Plastruct actually had a sheet that would work (PS-153) but it is long out of production and nowhere to be found. Someone suggested I ask for help on a car modelling web site as this stuff probably is used for trucks and heavy equipment. Any advice?