I am ordering the D.N.U. from select hobbies,and was wondering which engine would be best.I have a black widow,norvel .074 revlite,and a medallion .049.

The 074 would probably be a bit much for it. Either of the other 2 would be fine IMHO. I've flown mine with a TD.051, Norvel .061 and a Cox .049 product engine. All flew it fine with the Norvel being fastest (obviously).

Yep. Either Cox would be great but I vote for the Medallion with a 1oz tank for smoother, longer runs.

You should do a build thread. Take some pics. Its been a while since anything was posted about this wonderful plane.
You will enjoy it when its finished.

I think I will do a build thread,I just need to borrow someones digital camera.I think I'm gonna go with the medallion .049,HS-55 servos,spektrum AR500 receiver,JR 270 mah 4.8v receiver pack.

I've got a SS on mine with a 1 oz tank. I like the external tank due to the 8-9 minute flights that I am getting. This plane is too much fun.