Brakes are pretty straight forward and can be done inexpensively if you do it yourself. A good source for parts is
www.rockauto.com. Cost will depend on how many parts are bad. If you don't know history, then I'd probably replace the calipers just to be sure. If you're doing the rear too, then replace the rear wheel brake cylinders with the shoes. Rotors and drums will depend on wear. Probably not a bad idea to take these parts to an automotive machinist to have them surfaced. It's part of the machinists job to measure these before surfacing, so if they're bad he'll tell you to get new ones.
I'm no expert on auto transmissions, but I'll share with you what I know. When an auto transmission gives you trouble, the 1st thing to do is check the fluid. Make sure it comes up to the "full" mark on the dipstick (with engine running and transmission in park). Sniff the fluid on the dipstick to see if it smells burnt (it's a bit overwhelming, so if it's burnt, you will know). If that looks good, check the kick-down cable (it's the cable going to the top side of your throttle body and it has an orange silicone sleeve). Watch this cable when you step on the gas pedal. Make sure it stays tight in it's trough and retracts inside the sleeve when you take your foot off the gas. If that looks okay, then take the cable off the throttle body and manually pull it, then make sure it retracts on it's own. Finally, if all that checks out okay then take the drain pan off the transmission and check for metal particles. Take the drain pan (still wet in the bottom with ATF) and hold it in the light. Now shift it slowly (to change the way the light hits it). If you can see little specs of light glimmering (like looking at a metallic flake paint job), then your transmission is messed up.
Check this stuff out and report back. If the transmission is bad, I would recommend finding a good used one. They are probably hard to find in your area but they are still around here in the NW. Last automatic transmission I purchased was about a year ago. I got it from a pick-n-pull salvage yard for $165.00. It can be a gamble, but I always do the above checks before purchasing. So far (knock on wood) I've never gotten a bad one. Good luck. Tim
PS: The salvage yards drain the fluid out before putting them in the yard, so don't expect it to be full of ATF.