Michael, yes, I was fortunate to find them locally and have them installed. They apparently did at one time have what I am guessing was a rubber boarder around two sides and have 3/16" holes for mounting the rubber. I see no mention of this rubber in the aftermarket parts catalog but have decided to not worry about it. I totally understand the limited time. Hopefully your car is complete. Mine was a basket case and missing many of the original parts. Fortunately, I found some great suppliers of good used original parts. Unfortunately, many of the reproduction parts are poorly made, break, don't fit or fit properly, etc. Just keep in mind that the longer it sits, the greater the damage and repair. In a way of suggestion, if it can be made to run and drive, I would start there. If it has been sitting a long time, you can assume you will need to restore or replace your radiator and heater core, your wheel and master cylinders as well as your brake line rubber hoses. Will probably require a new gas tank or a good flush. Don't try to start it with old or gummy fuel. You can assume the hoses and water pump will need replacing and the carb. rebuilt. Again, all this assuming it has been sitting a long time. Clutch's freeze up etc. Just take your time, start with a "to do" list and knock them out one at a time. Otherwise, it can become overwhelming. I had to have my tachometer upgraded with VDO components to be compatible with a HEI distributor and found out my speedometer was dry and had to be rebuilt too. I had not expected that, but it makes sense as lubricants evaporate and or become gummy over time.
Best of luck