Hi Tim the brave.
I've been through this process twice, as the first replacement clutch broke after two years.
You'll need to tilt the engine/ gearbox as far as it goes. I used a few extra long extensions and could see across the transmission from the back end. NB. Also had the gear lever cover off the box, which improved access.
The real bastard that you will encounter,.is the long bolt on the starter motor. I ended up hole sawing the passenger footwell.
Best option would be to lift the bloody cab off the chassis and work from above. lol.
Don't let the b'strds get you down!!