If you are going that route lift it out with the front off is the easiest, the entire front end comes off in 6 bolts, the worst part is wrangling the gearbox out in situ, I would take the whole lot out still together. Dunno about 7 hours I did headgasket, full chains and clutch and ended up taking about 2 weeks lol, did get quite sidetracked with anything I decided needed doing on the way though, and had to remove and reinstall the gearbox twice though (the worst job of it all with the block still in the car!) as my flywheel was no longer flat so with the new clutch was shaking like a shittin