My H9 80" Cap 232 is awaiting it's DA-50 as well.

It should fit great. I ordered and received my 2.25" standoffs from Aerographix in Canada; they will give me the 6" I need from the firewall to the back of the spinner.

http://www.geocities.com/roger_forgues/contents.html

The firewall will have to have a hole opened up for the carb to go into, about 3/4" back.

I am going to use the Slimline Pitts they sell, with a Menz 22x8 prop.

I had a H9 Cap with a Moki 2.10, this one will only be about 4-6 ounces heavier, with lots more power!

It's gonna be fun...