After a two week wait the replacement bell housing arrived back from Westfield, the original was machined with a ~2mm error between the engine and gearbox interfaces that prevented the engine mounting bolts fitting when the input shaft was fitted into the spigot bearing.
After fettling the bell housing for the 1275 oil pump and clutch slave cylinder I fitted gearbox, clutch release arm, bearing and slave cylinder.
And with fingers crossed installed on the engine - fitted no problem.
Also fitted the WASP hi-torque starter motor.
James came out to help and we got the engine onto the hoist and positioned the engine for installation.
After a bit of a faff with front engine mounts we eventually got the engine installed and marked up the gearbox mounting holes on the chassis, removed the engine, drilled and painted the chassis and then refitted everything.
Once fitted I found a number of potential fouls that need to be resolved, handbrake mounting bolt/prop shaft, reverse light switch/chassis and bell housing starter blister/chassis, however, the engine is staying put for now so I can sort out the megajolt wiring and all the engine plumbing.
And the sump is the lowest point - not as bad as I thought and once the suspension is adjusted it will raise it further.