I agree with the other posters who suggested considering the Trek. It is probably considerably lighter than your current bike but I would suggest you treat it better than you do your MTB. In general, light road bikes are not meant for jumping curbs and you need to avoid big potholes if you want the wheels to stay true. The frame color in the picture looks black so I'm not sure which year matches best, probably 1995 based upon the color of the decals
Color schemes for Trek 1220
1994, ice indigo/ice violet fade with gold decals 1995, ice indigo/violet fade with silver decals 1996 ,ice Indigo/ice violet fade with gold decals 1997, gloss deep purple with titanium decals 1998, ice earth green with titanium decals
You can see the specs for all the years here: 1995 Trek 1220 - BikePedia You would be paying 25% of the original cost but prices have gone up a lot in two decades. You get a lot less for $800 today compared to back then. The components are good and the frame is aluminum.