chimpywrench,
The Kubota parts system is garbage (straight from my dealer's parts guys and my personal experience), so be very careful when ordering. For the whole boot kit, you have to go through sales ("whole goods", versus "parts" counter). Tell them what tractor and exactly what mower deck model you have...make getting the correct parts their responsibility.
For example, I just finished installing the BX3027 boot kit for my RCK60B-23BX 60 inch deck. If you had the 60 inch deck you'd order the same one. But, Messick's (as one example) lists the kit part as V50000 for me and V50200 for what I expect if your deck. The whole system is beyond frustrating; sometimes infuriating. If you want to try your luck, you could try asking your parts guy to order everything but the hose if you don't need it and see if you save money. Going by Messick's prices of over $500 for just the plastic boot you won't, but my dealer's prices weren't that high...but maybe those are MSRPs?
For reference, I paid $273 for my complete boot kit, even though I didn't need the hose. The kit hose is about 36 inches and is not in the picture below, the black hose came with my TKV20 material collector. I also needed to carve off some of the boot bits and bend the front bracket (not really visible in the up close photo below), eventually I got it to the point where on-off was doable in less than 10 seconds.
I'll try to find time and upload the Instruction Manual for the boot kit tonight, which covers all three mower decks/ boot kits, but it doesn't list the relevant kit numbers for each deck model.
