Cool, 43.5" span - same as the Vortex if one includes tips I believe. The Pico is 40" tips included (61.5% scale).

I would have suggested to go with 48" span if you weren't already invested. But then that would have required ~600W. The nice thing about the Nano is that the retracts are much easier to deal with. E-Flite (or knock offs) trike electrics, Robart's (pneumatic or mechanical), Spring Air 600's, and, of course, MK SS mechanicals. Here are Robart's options:

http://www.robart.com/store/retracts...-weight/2-5lbs

And some electric variations:

http://www.hobbyking.com/hobbyking/s...t_System_.html

http://www.hobbyking.com/hobbyking/s..._version_.html

http://www.hobbyking.com/hobbyking/s...ht_1pair_.html

Actually for the Pico+ (67%), these might be the ideal set. Even the correct wheels are included (1.7"):

http://www.hobbyking.com/hobbyking/s..._Version_.html

They are not as low cost as mechanicals but keep in mind that MG servos are not cheap either. The mechanical setup might be slightly less expensive but probably about the same weight. I know that for 25-32 size models (~78% scale), the mechanical setup is heavier than electrics. E-Flites weigh 5 oz AUW. Mechanicals are more than that with two servos. I read a review from someone who build a model with those units and he was very pleased. They have a nice small body footprint.

Something to think about. I'd still build the fuse first to make things easier, or, build the wing but don't join it and leave the wells until after the fuse and nose gear is setup.

Oh, I'd also recommend that you stay away from 1.5" spinners unless you go with something like a TT or GP aluminum electric spinner (pricey). I'd use a GP plastic 1.75" spinner with alum backplate on these models. I tried to use a 1.5" on the D15 as it was what scaled and I ended up having to refit the front end for a 1.75" as the smaller one was just too small for an 8x6 / 9x4 prop.

David.