There is one way. I bought my Kubota used. It is the only used piece of diesel equipment that I have ever bought. It was a tough call, but I just didn't want to be dealing with a Tier 4 situation in the years to come. So I watched the used tractor sites for a couple of years until I found a very clean low hours machine without the emissions crap. Paid a lot for it, not as much as new, but a lot. Have had it for several years and have been very happy with it. No computers, no DEF, and most diesel shops (and often myself) can diagnose and repair most anything on it. IF it needs it. So far, it hasn't.

But if you have to have one right now, then new may be your only choice. Good luck.