if you can work metal you can hang a delco on anything.. even a bicycle..
it won't have the tach drive the 3000 normally uses.. but WILL charge the battery...
just hook the wire to the battery connection of the old lucas vreg... I'd leave it in place as a wireing point..
1 wire would not be my choice.. 3 wire would.. or even one with the tach drive.. they cost more though..