You really should pick up an owners manual at the least, check out a boneyard for a wrecked one, some of them collect ownersmanuals and sell them. The factory service manual should also be considered. That $100 can save you thousands and I'm not kidding, rough estimate on my 98XJ is that FS manual has saved me over $3000+ in time I have had it. Thats one of the main reasons I spent the money on 97TJ manuals when we picked up two TJ's this last year. They paid for themselves when we had to pull the dashboards apart for some minor stuff that would have cost a fortune at the dealer, about $500 each so that $100 saved me a $grand$.
On the low end you could pick up a Haynes or Chiltons, their only downside is they don't always have the correct information in them or not enough detail which is understandable considering they cover like 10 years on one small book.
The FSM's are the size of a good sized yellow pages and ONLY cover YOUR specific year.
I can't help with the auto tranny, I've not owned an auto in over 20 years but they can be picky. Quick way would be to go to the dealer and get a few quarts directly, they are not that much more expensive and on alot of things are VERY competetive price wise.