FWIW: I pulled everything off as one unit more or less. I think I may have even pulled it with the exhaust still on it. I did this as it was a bit easier doing the tear down/assembly on the bench, and reassembly.
If you are handy, I would suggest doing your own tear down. I was able to use my motorcycle valve spring compressor ($30 on ebay) and used lapping compound to seat the new valves. You may only need to do the ones that are bent. Also you may want to do a lifter pump test on the bench as when they smack valves they tend to be noisy on cold startup, not a big issue, just make sure they are not bound up and no longer pump oil, I had a few that were locked up for some reason, and wound up replacing ALL the exhaust lifters.
Since everything will be apart, now is a great time to clean the TB and injectors while it is all apart. At the end of the day it's not that bad a job. I also used an inch torque wrench and an angle gauge to follow the funky torque specs. I used the bolt pattern numbers to keep track of how many 'laps' I made with the wrench, and marked off the three stages of torque for each bolt. This was the most odd thing about the job for me was using a torque angle setup, and keeping track of how tight the bolts were and NOT messing up the order. It was easy once I had a system down.
So I am curious, how did the belt just 'slip off' like that? Broken pulley?