You should just make your own account and join the community.

As for the IIfx, the RAM can be difficult to source, and expensive to buy.  Hans Strupat at Micromac has IIfx RAM doublers.  They turn a single IIfx RAM slot into 2, so you can use more low-cost, smaller RAM chips instead of the really expensive and relatively rare 16MB SIMMs.

I can give you his contact info if your dad's interested.