hello all,UNCLEBEEF here. i was lucky enough to score a 250 gallon propane tank. i successfully burned off the propane and opened up the tank.then removed the paint and started work on a trailer.my plans are to build a reverse flow with two doors that will function as one.im debating on materials for the grates should i use round rod or expanded metal? tell me what ya think, any suggestions? im also thinking about using 10ga sheet steel for the drip pan/baffle. anyone out there build one similar?