Greetings rockhard, from a fellow Generation 1 owner. (84 Camry LE Liftback, 298,000 miles)
This is my first post on this board, stumbled upon it trying to answer the same question as you. To my knowledge, nobody makes a strut tower bar for the 1st generation Camry. I think I read somewhere that the early front-drive Celicas used the same front struts, does anyone know if this is true? Could a strut tower bar fro a Celica be kitbshed to work on the Camry?
To answer your second question, believe it or not, there is one company selling rear anti-sway bars for the first generation Camry. I bought mine about 5 years ago, and it transformed my car from a boring family sedan into a real sleeper that's an absolute blast to drive. You're probably dying for the link, aren't you?
http://addco.net/Toyota-Yugo_AntiSwaybars.htm#Toyota
Addco says it's a do-it-yourself install, but I decided to pay someone else to do it and it took 3 guys all afternoon to get it the thing on. I paid $330 total, and I was told I got a bargain. Back then there were still several of these bars in stock, but the latest catalog shows it as a special order item. Good luck.
Oh and by the way, if you don't already have high-performance tires, you will need them. Trust me...