Nice catch for $300. You don't see that too often!!
If those drums all came together from the factory (excluding the Acrolite of course), then you have a Top Hat outfit, as seen in the attached catalog cut from the 64R catalog. That kit does not show up in the subsequent 1967-1968 catalog. It also was not shown in catalogs with beavertail lugs. From the serial numbers I can read in your pictures, it looks to be a Dayton era kit and they appear to be flat grey interiors. That would tend to date them from late '66/early '67.
You have the more difficult to find, and correctly laid out, 8x12 for the right-hand side of the kit looking from the drummer's position. If you can found the early double tom mount and the left-hand tom, you'd have the kit complete. The floor tom did in fact have another mount identical to the floor tom leg mounts, and that was originally supplied with a straight hex rod, an extension tilter and a regular short tilter, as you will see in the catalog cut.
Goo luck with the restoration and enjoy them.