I can't say for sure about Kubota but New Holland financed the loader on my TC30.  Same rate as the tractor although I bought the tractor and loader at the same time.  
I'd bet Kubota will finance the loader but may be at a higher rate if you already have the tractor.
See, I was really no help at all!  /forums/images/graemlins/grin.gif
Rodger