Grease monkeys might consider it as they have experience with it and may encourage you to buy based on their own knowledge - not yours!
If your are looking for a ride and asking if it's a good deal, then call a dealer and ask how much a new engine costs.
If you are not comfortable spending that amount on this unit + the engine, pass on it.
If you are comfortable spending that amount on it, go find a good one for the same price, buy it and go riding.
If you looking for a project and have time, tools and a place for it, then total what you have to spend, subtract $2,500 and that would be my final (not my first) offer.