I'll be starting my assembly soon; my Extra 300 was finally delivered this past Monday.
I picked up some parts for the 104" Extra from a pilot that recently pancaked his in. Fuse and elevators are pretty busted up but the canopy with instrument panel/pilot are in very good condition. Also came with the SFG's and one wheel pant and two wheels. Cowl was included but will need some fiberglass work and paint. Mainly purchased the parts for the two wings; R wing is perfect and the L wing had a LG/wheel pant punch through the covering and mess up a rib.
I'm going to split the ailerons on the two wings. I'll start with the outboard aileron for control surface and have the inboard fixed. If I don't like the performance I'll setup the inboard aileron as well. I'm also going to change the outboard servo from the horizontal surface mount to a vertical internal mount covered by an access hatch. I think those look much cleaner on the bottom of the wing. Once done I'll recover in red/white/black with a scheme that is more IMAC friendly to my eyes, I like straighter lines on the fuse and wings.
I'm impressed with the structure of the EF wing. Almost every balsa/ply joint that I can see is laser cut with either a dove tail or locking tab assembly. There are also four carbon fiber "stringers" (two top of wing, two bottom of wing" that run on both sides of the wing tube from the wing root to the wing tip. Another thing, the wing tube sleeve is completely boxed in. I'm not an engineer but the construction looks awesome.........great job EF.
Once I repair the cowl I'm going to attempt to split it into upper/lower halves. Having seen several done on GSN it doesn't seem overly difficult.