Man we have about the same setup but mine is a few years newer. I have Metaltech fenders, bud built quarters and cut the rockers off as well. I fitted my panels a little differantoly but Bud said most people just poprivet them on.
My Build https://forum.ih8mud.com/40-55-series-tech/240279-1977-fj40-w-vortec-4-3-4spd.html
My Build https://forum.ih8mud.com/40-55-series-tech/240279-1977-fj40-w-vortec-4-3-4spd.html