Re: Need advice
Have you done a tune-up on the engine thus far? If not, you may be surprised at what your plugs may look like.
As for the trans, at that mileage, you're probably close to asking for a rebuild. If it's still going down the road and not completely affecting driveability, i'd give it a little more time. But if you feel the need to swap transmission, try and find one from a similar year and engine size, with less than 80K miles. Keep an eye out on Craigslist as well for recently rebuilt transmissions.