Hi there, Im quite new to model kit especially gunpla. Just wanted to share a thing or two about doing model kits. I've found something quite close to pla plate and of course cheaper. Go to art shop try to look for rigid sheet or pvc sheet. It is a transparent plastic used when you go bind your books in book stores. Not sure about pvc sheet, but rigid sheet comes in different size and thickness. Try it for a change. Happy Safe Modelling.