Whats two Blazers worth?

[70Chevy4x4Nut]

I posted this on two other threads but this seems to be the right one.

I have the opportunity to buy two 71-72 blazers.

One is a 4x4 350cu, manual. Rusty body, no top, I think it had front seats. Been sitting along time, does not run, no title.

The other is a 2wd 350cu, TH350. I have not seen it, but he said it was running but tranny was slipping so he parked it. Has sat for a couple of years. It is suppose to have all good interior and the top. He was at one time going to put this good body on the 4x4 frame but never did. He said it had rust on the hood, but not sure of the rockers and such. No title on this one either. He was only going to drive it in the pasture. He said he may be able to go back to his brother-in-law to see if he still has the title.

What would be a fair offer for both trucks?