Well I finally started on the build of the Gene Rogers PT-19 plans/design. Copied all the wing ribs, 10 per side, onto heavy paper. Actually it was file folder paper. Got all 20 of them cut out of 1/8" balsa. On #2,3 and4 there is 1/16" ply doublers. That is cutting out an additional 12 front half of the ribs. I'm cutting stuff out on my jig saw but only able to work about 2 hours per day. Bending over that saw is hard on the old back. Of course after cutting out there is the edge sanding for uniformity. The spars are 1/4X3/16. The LHS does not have that size bass wood. I'm considering cutting the spars from 1X4 finished pine from Lowes. How will that compare to bass wood? The other side is to use balsa, but I question the rigity that balsa would have for the main spars on a 63" wing, even though it is reinforced in the middle with fiberglass. Comments would be appreciated, Also if any one has built this plan before,your comments would sure be appreciated also. So far it seem like it is going to be a real challange for first ever scratch built, just slow for an old toot.