Is This Dangerous? How To Fiberglass A Motorcycle Seat Pan For Beginners. 

Hey, I’m trying to customize a stock seat pan. It is a black plastics. I need to add some plastic to it to get the desired shape to the fender that I want. Then cover it with my leather. What do you suggest to use. I thought about using heat and plastic weld the same type of plastic and metal mesh to keep its shape so it matches and I can use staple gun with the leather. I have not tried this yet. There is fiberglass, but I don’t know how well fiberglass and this type of plastic play together. The other option is shaping a piece of wood to the desired shape. It will be easy to shape and I will be able to staple the leather to it. However, even though it will be hidden and covered by leather, I will know that it is there. I have pictures. I’m open to any suggestions because I don’t want to mess this up. I only have one.

Where do you get the roller or can you use something else?