I actually thought the instructions were pretty good. I did not change a lot.
I did hinge the elevons a little differently (put it in this thread
http://www.rcuniverse.com/forum/m_76...hinging/tm.htm ). I also cut about 2 inches off of the fins, they looked a little tall for my taste. I made all of the surfaces removable with pins as well for painting ease.
I run the stock Yellow retracts with BVM struts, wheels and brakes. I run full gear doors (a sickness) as well. I bought the Robart gear to replace the yellow as they seemed a bit flimsy but they are OK after about 100 flights (maybe more).
There was talk about needing a second speed brake on the bottom or some such thing, I think the stock one is fine just make sure you have very good mechanical advantage on that speed brake linkage and run a fairly good servo (I run a 9411), in order to make sure it opens.
It is not an easy plane to fly, very small and fairly fast (180 to 200 mph, being small makes it look like it goes 300)
Photo courtesy of Uncle Joe.