Easy for a novice, but you may run into some rusty bolts on exaust, etc. Also manuvering the tranny back can be difficult but doable. Just take your time and be careful not to cross-thread any nuts or bolts. Get a helper for the lifting if it feels too heavy, preferably some one that has done a clutch before. When you drop the tranny, check for leaks. This would be a good time to replace the rear seal if you think it might leak. Easy, and only a $10.00 seal. Much easier than having to drop it again like I did just to replace a seal. Also a good time to check the transfer case, and do a good cleaning.
I have done a couple of these drunk (with friends) and would recommend leaving the beer in the fridge until it's done. I did the last one myself in less than 8 hours. so a weekend set aside should be ok. Just try to have the parts all lined up even if you have to take some back.
Good luck! Adam