You may want to do some research on dpf issues. There is plenty of information out there and very little of it good. I was in your shoes a few months ago but it didn't take much reading before I decided to stay away from dpf. The L2501 is just under the threshold so no dpf.
Bought my new L2501 HST with QA FEL, loaded AG tires, 5' brush hog and 5' box scraper for $18,999. OTD including tax brought it to $19,579. It seemed like a decent price to me but I am interested in how it compares to others.