Thoughts????

No problem with the exhaust idea. The biggest concern is that early F bodies like this one, when located in any area where road salt was used, had a tendency for the front frame rails to rust through right below the firewall. Having owned and parted several F bodies, I have seen this many times, even on cars with less than 40,000 miles. Get under there and have a good hard look before you buy. Side exit exhaust isn't cool if the car it's on folds in half at the firewall.