RE: Martin Black Mamba
The Hunter is a 62"--much better in that dept. The price on a new one is the same as a Mamba, so it's still a good deal. Unfortunately, the weight may be on the heavy side, and even the 62" Martins I have owned and shot stacked pretty badly.
The weight should make it a LOT easier to sell/trade if you ever wanted to get rid of it also. Keep it in good condition, you shouldn't loose a dime.
Chad