I can't imagine riding that in anything but powder, you won't have much control on any firm surface.
Drill and t-nut is about your only option unless you could find some bindings that would match the old hole pattern.
There are quite a few older boards out there that could be a fun ride, but the problem is finding workable bindings for them.
I have a Craig Kelly Mystery air board in decent shape ,and would love to ride it , but the old bindings need repair,and I just cant make myself drill it and reduce the collector's value of it.
Maybe some one could fabricate adaptor plates that would bolt onto the old pattern and allow you to attach modern bindings......