[orange4boy]

I actually slump glass all the time. I have a large kiln I made for firing my glass art. Christ was bang on about slumping lam. glass. Not possible.

Laminated windshields are slumped with the two layers separated by a special powder so they don't fuse. That way they will have a uniform gap between them for the plastic layer to be vacuum bonded to. They are not tempered so they could be carefully cut. Abrasive water jet would be a good way but I'm not sure about how they would deal with the curved glass. A fine grit diamond wet saw could do it.

I bet custom laminated windshields would cost a king's ransom outside Cuba. Best bet would be to find a junked MG or something like that.

Acrylic is far easier to deal with and can be polished if scratched. It's a one step bending process. You can also get it with a teflon coating which helps resist scratching.

It's pretty easy to make a hot wire bending tool for acrylic. See Instructables. You would be limited to straight bends though instead of curved. Would still look nice and vintage.