Have you tried calling Bob at Rebco for info? I would try that before lopping off the tongue.
Also I noticed on another Rebco pool table (one of their antique reproduction tables) they use K-66 cushions. I didn't see which exact Rebco pool table you had so not sure if it is similar.
The 9' Antique reproduction allows you to have the exquisite styling of an antique with the modern playability of a contemporary table.
The Universal York features a thick 1" thick slate play-field that is diamond honed for absolute accuracy. K-66 cushions provide accurate rebound throughout the rails. The exotic woods used in this table immediately catch the eye [...]
Thanks for the contact info! I sent him an email, hopefully he'll get back to me soon.
As for what model my table is, I honestly don't know, the plate off the rail is missing. I found the number "02350" along with the name Rebco and year on either the frame or the legs, I can't remember which, and "02352" is on the underside of the rails. I searched the Rebco website (now down?), and the closest thing I found was the Centennial, but this has wood sides instead of metal, and the legs are more round where these are squared off.
Bob hasn't gotten back to me, but I took some measurements. The rails are 1 5/8" thick, and the cushion base angle is 26º. I verified that with 3 different tools/methods, just because to be sure. For K66 it should be 20-23º, and K55 is 22-25º, so with either one the nose is too high. With the K55 cushions taped to the rails, table width is just under 50", and once the cushions are moved down into their proper place it will decrease more. So once I've verified that my Amazon cushions aren't longer then spec (quality cloth and cushions will come later), I think a pass across the table saw will fix the tongue, geometry, and size all at once. I've also posted this on azbilliards, I'm hoping the guys there will approve.