I wrote that reply over four years ago!
I sold the airplane in 2004, as I don't do much prop flying anymore. It had well over 500 flights when I sold it.

It had Southern RC retracts, but I don't have them or the box anymore, so I don't have the part number. I don't know if they arestill in business either. I used JR 180 degree servos fort the gear, one in the wing, and one in the fuselage for the nosegear.
Any good mechanical retracts will work, so just do your homework before you build the fuselage.

I used a firewall mounted nosegear unit, and machined a backplate type mount for the engine, and angled the cylinder head to the right at about a 45 degreee angle, so the engine mounting would not interfere with the nosegear mount.
It was a fun airplane, but a jet it ain't.

Good luck,

Harley Condra
BVM REP
JetCat REP