I've got my 1960 235 mounted in my '49 AD frame. The pulley is obviously much too big and long.

Are my only two options either a short shaft pump as seen for $150 or an adapter plate and a 216 pump?

Is there any of the FLAP rack pump I could use in conjunction with an electric fan that might be a better option?

If not, how hard is it to drill the engine and ream the holes for the plate?