Feb 2020: first thing is to get the airframe down from the ceiling. It has been here for several years quietly waiting its turn.
I built a crude but effective rotisserie on wheels to ease the work ahead. The airframe started as J3 but i am changing it by converting the upper structure to PA18 style with front spars attaching at outside of the upper structure rather than in the center as in J3.
The change involves a new front cross tube to attach the spars, new uprights at front corner of the cabin, an x brace in the top, an x brace from the top firewall back to the mid cabin front corners and a x brace from the top front cross tube to the top firewall corners.