The headlight that you have is round, whereas original fitment was square. As such, you may find that a generic round headlamp, like for an old mini would fit.
The windscreen will probably need to be cut to fit. I’ve read that someone had one cut from a land rover screen. You need to find a windscreen fitter that can do this. I had one made a few years ago, and he came and fitted it on my drive. Can’t remember the name of the company.
Best of luck, Geoff.