rookiefarmer, a word of wisdom....don't post a link of an item for sale if you're interested in purchasing the item. Reason...someone else may be looking for a similar item, and while you're deciding they purchase it!
To answer your question. If you know the loader arms are far enough apart to straddle your tractor, and long enough to reach past the front, all else can be fabricated if you have time, tools, steel and patience (oh, and money).
But then you have to understand I'm a non-conformist rebel!
I believe if man made it man can fix it, and in doing so make it better the second time around.
How much difference is the frame length and width between the L245 and L260? I don't know for a fact, but I bet not much.
As a point of reference I installed a Massey 1246 loader on an L305. All the brackets to attach to the tractor were fabricated. It's the metric bolt cost that got my attention!!
I gathered all the information I could off the net, then drove 400 miles to pick it up. I could find nothing that would bolt up and go without more work then starting with what I got.