Removed engine and mount from firewall. Drilled locations for first battery box and starter/master solenoids. Fabricated doubler for solenoids and installed on firewall. Located penetrations for prop, throttle and mixture cables. Used sheet metal punch kit to make cutouts for eyeball grommets; poor results with stainless. Cleaned up the cutouts and installed the grommets without the eyeballs pending measurement of the cable runs for ordering.