$$$ BOUNTY : HP 2895B paper tape punch racking info

I'm offering a cash bounty for information on rackmounting the HP 2895B paper tape punch. I have this gorgeous 2895B on a nice sliding tray with telescoping slides. The telescoping slides then mount to other stationary rails inside the HP cabinet. This is all standard-issue HP stuff. However, I can find no way that this drawer will mount to standard HP stationary rails (L brackets). This means one of two things... either the hardware on the sides of the tray was put together wrong by the previous owner and I can't figure out for the life of me how the pieces should be assembled, or, the 2895B rackmount drawer requires special (different) stationary rails inside the HP rack that I don't have. The bounty is for information as to either how to correctly rackmount what I have, or, acquiring the correct stationary rails. I know this sounds picky, but everything in this particular restoration is completely "authentic", and I don't want to mess that up with "jerry-rigging" a non-standard mount for this one item. The 12926A (the HP part number for the whole 2895B kit, including interface card, cables, diagnostics, etc.) manual does show the 2895B racked with a side view. However, this picture shows the punch, drawer, and slides but does not show how that assembly is bolted to the inside of the HP rack. As to where to look, the 12926A manual lists another manual which MAY contain the sought after information. This manual is: HP 2985B Tape Punch Operating and Service Manual, part number 02895-90008 However, I seem to recall that this manual above only says "For rackmounting instructions, see the instructions that came with your rackmount kit". In addition, the actual rack mount kit for the punch is part number 02895-60002 (light grey) or 02895-60003 (moss grey). This kit would surely have the instructions for assembly in it. Can anyone help? Jay West