Another 70 swinger-340 road trip..maybe.

My wife and I are thinking of a 2nd 70 340 4spd swinger purchase. What we are looking at is what I think could be called a survivor,I say this because the car is bone stock original with under 100,000 (not 100% sure ) miles on the clock. Was painted about 11yrs back in southern California.Owner says it is numbers matching and will verify. Shows not too bad, straight good glass,rebuilt tranny,decent black interior,and a strong running 340. It is showing some small bubble rust in a few areas and under the rocker panel just in the area under the quarter window, road side. Now there is a perk to this purchase, the seller has complete a 70 340 6 pack to go with the car which I'm sure these cars were not offered with. Being new to these "A" body cars and not wanting as always to pay more than it's worth, roughly what could be a fair price for the car as is. My research seems to fluctuate based on how original and or how the car is restored so I am a little unsure of fair value. Open to your thoughts on this one. Thanks Jeff