Thanks. I'm going to the junkyard on Monday to start cleaning it out and removing the cab. Once that is off I'll pull the engine and trans and then bring it home to start the real work. Maybe we will try to do a build thread, its going to be a family project.
If you can, post some pictures of it (both inside and out) on here, if you would like.
Here are a few tips I'll give you before you get started:
1. Don't be in a big hurry to cut your frame off even with the module (rear body). Leave it long to start with and then trim it back once you determine how much length you will need to mount things, like a generator, propane bottles, spare tire, or even just a storage box. Also the longer the tongue is, the better the trailer will track behind your tow vehicle. I left 30" (finished) on mine between the A-frame and the module, and now I wish I would have made it 36".
2. If your electrical system is intact, and before you disconnect anything, put a good battery in it and test all lighting, devices, control switches, door switches, etc. and take notes about what and how things work. This will save you many headaches down the road. If you have an EMS history and have operated ambulances before, most of this will be obvious, but if not then a lot of it will be a big mystery. I neglected to do this, and even though I operated ambulances for 10 years, I'm still guessing at things. Also, knowing what works and what doesn't work establishes a baseline from which to troubleshoot from.
3. Carefully uninstall the wiring between the cab and the module! Don't just assume you're going to rewire it all yourself and start ripping and cutting everything apart. I disconnected everything from the engine compartment first, then the cab, and then pulled it all back inside the module so I could work with it.
Most of this wiring and equipment is very expensive, and a lot of it can be reused. Just because you remove an item you definitely won't need, like the medical vacuum pump, doesn't mean you can't use that circuit for something else. By Code, all wiring in American made ambulances must have the circuit name printed on the full length of the wire itself, such as 'Rear Load Lights' etc. This is a big help, but not foolproof.
Good luck, and looking forward to seeing what you got!