Note 1: The are a few differences between the older ('70s-'80s) B7100s and the newer B7100s (late '80s through late '90s). For the purposes of this discussion I beleve that the wheel base is different thereby affecting loader availability. The B1630 Rigid Loader will only work on the newer B7100s. After much searching I did not find any loaders available for my older
B7100 (even though a Woods salesman told my he had a brand new Woods model; after closer inspection we found the note saying that it would not work on the gear-drive B7100s).
Note 2: According to my B7100HSD Sales Brochure (dated 1996) the B1630 Rigid Mount Frond Loader is "not compatible with the mid-mount mower". However, my "Kubota Front Loaders" sales brochure (also dated 1996) says that the B1630C "loader is compatible with the RC54-71B and the RC60-71B mid-mount mowers". Either one of the brochures is lying or the "C" added on to the end of the Loader model number makes a big difference.
Based upon my research, I don't believe that it is cost-effective to buy a
B7100 and try to add a loader to it. I don't believe that there is much price difference in any of the B-series loaders, but there is a lot of performance difference. If you added a loader to the
B7100, it probably wouldn't be long before you would want to upgrade to power steering or more loader performance. If you found a
B7100 with loader reasonable priced then that may be worth considering. Even with that I would seriously consider a 3-point mower if the
B7100 was a hydrostatic model.