Doing a quick internet search turned up Doug Jenkin's Custom Hot Rods on Forest Park. I have no personal experience, but the site looks interesting.

As for the BMW, I think you should take that 3.5L six and pop it in a '50's 502. Be careful in getting started on this project. Once bitten you'll have something powered by a flathead of early hemi in your garage.

Hope your dad get's better and is able to enjoy that car.

p.s., lived there for a year so I know you're already enjoying spring weather. Lucky devils!