Nikko,
I believe you can get them direct from massey/dealer. Also I believe there are a couple of aftermarket options.
What size backhoe bucket did you get?
Also Nikko I looked at your link and I saw some full forks for a kubota and something about some clamp ons but it wouldn't let me proceed.
Are you looking for forks to lift pallets and such or short dirt and brusg teeth type to clamp on your bucket or ???
Are you planning on doing quick attach for your bucket or clamp on items?
The answer to some of those questions relates to how heavy the items are you would be lifting.
I added a quick attach to my unit and a set of forks. In that configuration I have the bucket on or the forks (switching tskes about 1 minute after a little practice). That system allow vey heavy weight handling on the forks and also sets me up for a future grapple.
Clamp on products are less expensive but also less strong.
Some choices to check on:
If you go my method then you'd go to mytractortools.com. they also offer a debris bucket with long extensions for brush and rocks etc.
Clamp on choice would be like
everthing attachments
Bucket solutions
Etc. Etc.
Back to the thumb for the backhoe issue:
Massey offers a thumb fr either the 8, 10, or 12 inch buckets for your backhoe.
Seems to me all the others listed above may have some choices or options for thumbs as well . . I just don't remember if they are for mssey or just kubota.