I converted the top half of the cowl firewall line from hinges to Skybolt. Took a little doing and some glass work, but I was repainting the whole plane anyway (well, a total rebuild really). This was before the pre-fab brackets were available, so I rolled my own.
Very do-able if you are not afraid of going off-plans and getting creative.
RV-6A. Mattituck TMX O-360, FP, GRT Sport EFIS
N184WM reserved (RV-8)....tail kit done, slow-build wing done, slow-build fuselage in progress.