Idk it really doesnt seem that
bad, especially if the price is right
The wheelwell rust should be solved by a little sandpaper, paint etc etc, it should be relatively simple. Same with the Sunroof... theres a DIY about the "Sunroof Tilt Mod" or sumthin, and it involves removing the glass i believe...seemed pretty straightforward. A trip to the U-Pull-Em should HOPEFULLY solve your headlight/front-end needs...
And have you checked the fuses for the power-seat? If its not a fuse idk what to tell ya...but im thinkin a Search of the forum should come up with sumthin
172k really isnt too high a mileage, especially if its priced as a Mech's Special!! My current '94 L Sedan has ~223,000mi still going strong! My '93 Sedan basemodel(NO Sunroof lol) had ~360,000mi when timing belt went, but it also needed struts, control arm, had badly cracked windshield(360k worth o'rocks!), etc, etc so i instead bought the '94 with 167k. I still have my '93, "takin a break" in my backyard. I'll plan to eventually rebuild with aftermarket suspension etc, until then it donates parts from time to time!!
Just my opinion...but hopefully Welcome to the Club!!!