What would you do?

[1970blazin]

We bought a 72 blazer about 3 months ago. The kid we bought it from said his sister had the title and he would get it to us when we picked it up. When we went to pick it up he said he couldn't find it and he was applying for a lost title. We bought the blazer for $1500, but only paid him $1000 and told him we would pay the rest when he gave us the title. We still haven't heard from him. We have a different 72 blazer that we parted out that still has the VIN# and title, so I guess we could switch VIN's, but I am kinda disappointed because this other blazer we bought had the glovebox sheet intact (and in great shape) with lots of options- AC Tilt ect!
Long story short I am just wondering if it is worth going after the other title for $500 or if I should just change VIN's?? We aren't restoring this blazer for show or anything. Here's a pic.