Jim,
Haven't nailed down a specific tractor yet, just started looking today for something this size. I need it to use for small land leveling jobs and disking for prep work. Prefer to get something less than 14,000 lbs with 100+ hp, mfwd, possible fel, powershift, closed hydraulics and multiple remotes. Also prefer single rear wheels for easier transport.
So far the 4255s' I have looked at are running from $40k and up. The 6430s' are almost twice that, wondering if the newer 6430 is better from a cost stand point? Really think the older 4255 tractors may have more life in them but am no expert. One thing is certain I don't want to buy a new one for $100k, not in the cards.