That $10,000 is too high. A 1998 with over 100,000 miles should not fetch more than $8,000 no matter how modded. Mods are just not adding much $$ to prices in this economy. You can read the endless examples of sellers here on LS1Tech unable to sell their modded cars for much more than a typical mostly stock example. There are always exceptions but right now it is rare. The reason why $10,000 is too much for a 6 figure mileage car is due to the high risk for the buyer. Every used car needs things. Very few exceptions. A 14 year old 100,000 miles car wil need many things, no doubt about it. If not now, then within 6 months to one year. It is unavoidable 9 out of 10 times. Buying this car at $10,000 equates to $12,000 at least in March 2013, just one year away. We aren't even talking taxes, title, etc... Now try to sell this car in a pinch if necessary. Even higher mileage and offers not exceeding $8,000. An immediate $4,000 hit at the very least. Ouch!! Buy it at the right price and reduce the risk or potential hit. It diminishes each year the car is owned but who knows if you can keep the car for 3 or 4 years. Quite the gamble.