Once you're under there looking at things it really isn't as bad as you think it'd be.
Is it a post facelift one or pre?
Only difference between the two will be different types of diff drain bolts for r180 and r160 diffs, volume of oil needed. And for gearbox, haven't been under a 5mt in a while so can't remember if they have two gearbox drain points or not. 6mt have two with one of them needing an annoying t70 torx bit for your socket set and the other just a standard socket bit.
Also go to super cheap and get a small funnel with a small opening, TWO of their big funnels with the long necks and cut the funnel part off one and attach it to the other one, definitely the easiest way to get down to the silly little gearbox filling hole. Fills through dipstick hole btw, hence needed the real small funnel aswell.
I didn't worry about torquing any bolts, probably should have. Gearbox and engine are fine but the diff thread just felt a bit softer and easier the wreck than the others so don't go cranking the hell out of that one.
Can chuck some pics up if you want any more detail.