Looking at the picture the hardware looks fairly common and you should be able to match it up with new or just be on the look out for used hardware, make sure you know the measurements of your turnbuckles etc. You may see the hardware identified more by manufacturer than by builder. Glenwood made a ton of this stuff back in the day as far as turn buckles, NICSON also made them, the NICSON Turnbuckles are a little different, ill post a picture of my Spectra which has NICSON Turn Buckles (I bought them used from shop in Phoenix, I found them on ebay)
The plates look to be aluminum and you can sources these pretty easy at most any steel business. Aluminum is easy to work with to cut and polish or if you want to step up to stainless plates a bit harder to work but you can still do it or enlist a shop to assist. The best thing about stainless is if you want a polished look, you do it once and they are done with some occasional light polish. For me the cav plates on a v drive are a beautiful thing and you can go crazy or simple, I like simple and clean probably because I cant afford Crazy
Here are two examples, my Sanger has aluminum plates, raw, no sealer at all just polish and they need some attention. My Spectra has Stainless, they were polished in 2014 or 15 and I don't touch them with anything heavy or labor intense, some good metal polish wipe on wipe off. The Sanger was put together in 96' so when I play with it in a few years the plates will go stainless.
The plates look to be aluminum and you can sources these pretty easy at most any steel business. Aluminum is easy to work with to cut and polish or if you want to step up to stainless plates a bit harder to work but you can still do it or enlist a shop to assist. The best thing about stainless is if you want a polished look, you do it once and they are done with some occasional light polish. For me the cav plates on a v drive are a beautiful thing and you can go crazy or simple, I like simple and clean probably because I cant afford Crazy
Here are two examples, my Sanger has aluminum plates, raw, no sealer at all just polish and they need some attention. My Spectra has Stainless, they were polished in 2014 or 15 and I don't touch them with anything heavy or labor intense, some good metal polish wipe on wipe off. The Sanger was put together in 96' so when I play with it in a few years the plates will go stainless.