L-35 3-point hitch parts---according to Kubota---have unique numbers and do not interchange with any other machine.
Pull up KubotaBooks.Com or Kubota mother-ship website and compare by part number and appearance for the two machines.
There are no known L-35 3-point hitch parts sitting in salvage yards in the U.S. of which I'm aware. At least as of approximately 1-yr ago. I tried EVERYWHERE (dozens of emails and phone calls) because I wanted a spare set. If you look hard enough you might turn up a set somewhere, but low probability.
Regardless of source, assuming the seller knows the value, be prepared to pay. Dealer prices using my -10% for being decent customer paying cash, again as of a year ago, ran upwards of $1,700-$2,000 complete, depending on odd things like nuts, bolts, 3-point draw bar, odds-n-ends.
I'm curious how your search works out. Please post back your experiences so we may all learn. If you stumble into two sets, advise via Private Msg through this website.