[R-390] Interchangeability of RF Deck Mechanicals

[JMILLER1706@cfl.rr.com]

I have a Collins made 390a that is "almost" all Collins except for the IF which is Motorola.  It receives exceptionally well.  However a previous owner apparently took a Drimmel grinder or a file to one of the vertical slots on the front face of the RF deck (the slots where the RF slug racks ride up and down in).  And it was not just a little filing, there is some significant amount of metal whittled out of one of the slots.  The slug rack rides up and down OK with no apparent problem, but some day I want to replace the slug rack front plate.  I would like to find a junker RF deck to cannabilize for this.  Question:  Should the mechanics (hole locations, machining, etc.) of RF deck metal stock be identical between manufacturers?  In other words, if I find an old EAC RF deck, take the front slug rack plate off and put it on the Collins RF deck, should things still line up mechanically and physically?