So I went up to skidsteersolutions.com (their Bellingham, WA warehouse) yesterday and picked up a set of their 4400lb pallet forks. Had an interesting, lengthy conversation with Rob, the founder and owner. Anyway, brought the forks back home (under $650 including sales tax) and put them on this am. Here's the 4240 moving a pallet with 1000 lbs of snow melt (half a load).
I'm also glad I didn't get anything longer than 48". I was thinking they would be too short, but I hadn't considered that they stick out in front of the tractor makign it a LOT longer than it is with a bucket. With the 48s there were some moments where I really had to pay attention not to whack stuff with the tips.