Progressive will try and low ball the repair. I've been there before. THey're abosulutely the worst to deal with.
Salvage value of your car is between $500-$1100 if the miles are close to 100k.
Also, if you have them total it, there will be salvage record with DMV. Next time you go to renew your plates, they will want you to perform state repair inspection, and issue a salvage rebuild title after that. You might be ok after the repair if you keep the car, but if you go to sell it, the next person might have issues with it.
Hopefully they'll just write out a substantial repair check in your name and you can go shopping with Jamie for Torreador parts.