Though I cringed at the restoration cost they listed in the ad (seems way over priced to me), I like the sole of the "inspiration" one, a plywood sole like in your's is what's more typical but that's the beauty of a project you get to do what want. If you want to copy the plank flooring you could use any wood that strikes your fancy. Choosing something with good
rot resistance will add to the longevity but with proper care and maintenance any hardwood should last.
Your windshield is similar to the one on my Jet factoring in some slight design changes for the age difference I'd bet it the original. A search will net you some companies that you can send yours to and they can make a replacement but that's usually pricey, Several/some here on iboats have made their own replacements from flat sheet with good success and some searching will give you some ideas of how they've done it.