Hi Bondo;
Okay, the drum gods have either been very good, or quite evil to you... it all depends on how you look at it. You've got most of a model S-300 Ludwig Standard drum kit. These are great kits! The problem is, it came with a 14 X 14 floor tom... and those are kind of tough to find. Now, if you don't mind 'non originality' of the kit, you're in luck! Grab a 16" floor tom in Ruby Strata and you've got it. If you go for originality... well, it's going to be a while unless you have some serious mojo and a bucket full of outstanding karma in the bank. The 14" floor toms are, and I hate this word, I so much would rather use the word scarce, but their not... 14" Standard floor toms are kind of rare. Not rare like you'll never see or find one... no, but rare like worse than scarce and you'll see one in your wrap in good shape that you won't have to mortgage your house over infrequently.
Now, I'm also not trying to scare you off... IMHO you've got most of the holy grail of Standard's, in a very cool wrap (the only better wrap is Avocado Strata, but then I may be biased). The S-300's didn't sell all that well, and here we are. You mentioned this was a mid life crusade... well bro... you are indeed on a quest for the best.
If it were me, what would I do? Find a 16 in good shape, use it until you find the 14. The hardware you're missing is not that difficult to find. Ask here on the forum or look to ebay for the parts. These are excellent drums, have fun with 'em!
The ebay auction you mentioned: That floor tom looks like it's had water damage. Before you do anything, ask for a better description and a lot more pictures... frankly, I'd pass on those for that price.
C