What would a new B2410 with loader cost, around $15,000 I think. You have to ask yourself if the savings is worth the lack of a warrantee, and the uncertainty of how rough those 450 hours have been. On a rental unit my guess is plenty rough. At 8% interest your 2150 will cost you about $200 a month for 5 years, and the new 2410 will be around $300 a month. If this is a once in a lifetime purchase, maybe the peace of mind is worth the extra bucks.