OK, OK...stop pushing!!! :grumpy:
Long Answer
Here's what I've found...The rivets you see in the scales are brass [duh!], and the size of the rivet shaft is 1/16"...but the head (what you see) is ~1/8"...the liner holes are slightly countersunk on the inner side for the rivets, and the end of the rivet is hollow...
I imagine the workers on the assembly line have a crimping tool of some sort to crimp the hollow part over into the countersunk holes...and they assemble the liners & scales before the rest of the knife...
So, if you're going to do a change now, with the knife assembled, you really need to disassemble the knife (drift out the 4 rivets & take the blade, spacer, spring, and rockerbar out)...then you can get at the countersunk rivets and drill the ends off and drift them out...
Then you can get some brass nails/brads/escutcheon pins and cut them about 1/16" oversize for the length of the hole, push them in from the scale side into the liner, and gently peen them over into the countersunk holes...
Then reassemble the knife...and file/sand/buff the new pins & the bolsters...
I've done a couple so far...but I intended to change blades, so I had to take them apart anyway...
After you've done it a couple of times, it doesn't really seem like all that much work...
Short Answer
Get Leroy to do it.