Dave, I just stumbled upon this by way of looking at your 'mysterious missing post' discussion in the Feedback forum - so, sorry for being late to chime in - glad you found what you were after, perhaps others are still looking...
We started looking at used, like you, and also wound up with new. No regrets about that!
I looked at the
B21 and
BX23, but felt a beefier rig would be better; especially if it was less expensive (which ruled out the 4330!) Wound up with a Mahindra 2615 and it has really been solid.
But, as I said in a post that DID get deleted, it is really important to find an excellent dealer. Which, fortunately, I eventually did. I found our nearest K and M dealers (no, not at one location) had some excellent equipment, as did some independents further away - BUT the entire tractor-shopping experience was far more exasperating that the stereotypical Used Car Nightmare, and needlessly so. (What IS it with some of these places?) /forums/images/graemlins/confused.gif
Thankfully, we did not go as far as your 1,000 miles in one trip; but close to it in the total process. The shop who finally did get our businss was only about 40 miles away...