"Chris is the best in the U.S. on the LT80's."
One could argue that.
Chris is a great guy, but,,
Lets not forget that my machine was in front of yours,,,, and for 1/3 the cost (2005).

"So my ? is should i but the money in it or buy something else?
And allso what should it cost to make it competive?"
For MX, the LT80 lacks suspension compared to new models. For flat track/TT it's still right there.
$700 plus a pipe (motor work).