Blars, The 4672 has much more digging force the the 662H.
Bucket digging force - Kub 2950 lbs, Bush 2450 lbs.
Dipperstick digging force - Kub 1740 lbs, Bush 1250 lbs
I have the 4672 and would not want any less digging power.
The 4672 will be more stable as well. The stabilizer spread is Kub 102", Bush 78"
The 4672 weighs 845 lbs, the 662H weighs 654 lbs, the Kubota has almost 200 lbs more steel.
The kubota hoe comes with it's own pump and the heavy duty toplink bracket, are you comparing prices with or without a pump on the Bush hog?
I don't think the 662H has a subframe available. Whichever one you get make sure that it includes a heavy duty top link and the added subframe braces that bolt on the tractor. I think the
B7500 uses them (the
B2400 does).
Andy