[mtpockets]

No heat problem inside the footbox. BDR's really good about that.
Like any other car, used or new, do your research. A great car can be assembled poorly. Again, do your research.
Low to mid 40's is can be seen for BDR 400 - 700 #'s well put together. Again, depending on the level of upgrades the previous owner has installed or had installed, he could easily have over 50k in the car. In the present market there are some really nice cars out there, at very reasonable prices. For Sale section on this site along with Cobra Country are great places to look for new and used cars. Also,
The Complete Guide to Cobra Replicas, 4th Edition is a great source. You'll find it on Cobra Country.

Once you narrow down on a particular car, ask questions of folks in the area it's being sold in. Do they have any knowledge of the car? Who assembled it? Has it been driven hard? Taken care of? Who built the motor? Are there any existing warranties? You get my drift. I looked for a year before purchasing my Cobra replica.

Don't rush, good luck.