[kuehl]

You have 3 issues here to solve and driving fast with windows down is a statistical nightmare.

1) The clutch is not engaging, for the moment, we'll say because of an electrical problem. You can trouble shoot it from the compressor forward or from the controls backward. In either event we have provided a hyperlink you can read to get started.

2) After you resolve the compressor not engaging problem, you can make up your own mind as far as how much you want to invest in the car to make the a/c reliable. You will need a new barrier hose set if you don't want to top off or recharge often.
You can buy an aftermarket drier with the proper port orientation on the net or where ever.

3) You could, as Jim suggested, squirt some mold killer and Fabreze through the passg. foot panel inlet, however R&R the evap would be a cleaner job.