What Full Suspension ( a tubular front k-member can be not fun on the street)
What Full brakes ( brand and does it have aftermarket lines)
What Moser rear with all the options (gear, axle size, and type of center section)
Do you have pics of it? LG is pretty big into road racing and been in the LSX market for a while.
The devil is really in the details and what parts were used and who put it together. Anybody can buy the best of the best, but not everybody can put it together right.
Based on what you posted the car sounds pretty good but I would press him for details.