Congradulations on your new rig. I have the same year and model. Based on your to do list it sounds like you have yourself a real peach. Post some photos when you get the chance.
Mine did not come with its coach manual either but I believe this manual is still available. Not sure of the phone number but if you search the forum for "Secretarial Services" you'll find many references about how to purchase manuals.
On the TV...I would check with Radio Shack. I'll look at mine and see if I can get the info from the adapter for you.
The shower came with the gold folding doors. I've replaced mine with a shower curtain but still have the old doors with the rollers. Its your for the taking if you like. Just send me a PM.
If yours is like mine (and most) you'll be certain to find more things to do (especially below the coach
). I've relied heavily on the forum for technical advice and know how along with the moral support to tackle almost everything myself.
Good luck with your new ride and welcome!