Interesting. Now I really want to run it lol!
I know you have time on your five cylinder Tom.
This report in the 7-70 really makes me feel like I should probably try it regardless of parts availability. Those sound like they have been reliable for you guys.
I am just shuddering at the idea of hiring a machinest to recreate a rod or forge shop to make a piston or similar.
I e mailed the "new " Seidel website for info. The site did elude to possible repairs and parts for some of the "older" Seidel's.
Hoping something comes back.