Jimmie,
I did not put in retracts at this time. I did however, make allowances to do it just in case I want to in the future. I don't believe it would be difficult to make a set for this model. I put mine in a little different than the plans call for. I have the gear wire mounted ot a separate plate, which bolts to the box inside the plane which has slots in it to adjust he wheels up or down as necessary. I now have 1-1/2" clearance under the plane, which I think will be plenty, and maybe a little to much to look scale. Right now the nose is sitting a little high. Still need to do some adjustment on it. I have a spring arrangement on the nose gear so it moves up and down for a little shock absorbing ability. I'm working on making the gatling guns and the 40mm BOFORS out of K & S aluminum tubing. The radar domes on the side are tops off of deodorant spray that I found at Wal Mart.
Randy