So many great golden era DD tables out there, what do you recommend for $1000?

@lewm Actually it is a line switch, and I seriously doubt whether it would work between tonearms and phono thus my warning. Luxman also offers the AS55 which is a speaker's switch. Both are produced first and foremost for dealers and collectors in mind and are only available in Japan and its closest neighbors afaik. 
You are right about a custom switch, possible but far from ideal. A multiple inputs phono stage or multiple phono stages are the way to go, costs notwithstanding. 

Glass mat was poor Uber......
Took all the 'meat' out of the sound 🥩

Gallus
Did you ever look at the Manley Skipjack.
It appears it might serve as a multiple phono switch, after all it was made by Manley!
However I have decided to not pursue that route for now as with the new to me TT81 mounted in its huge by large plinth I do not have the room for more than that and the Garrard 401 in its equally huge by large plinth .
So the TT71 is now a "back up" TT.

Halcro.
Good to know, the multiple Rega replacements of the glass with acrylic platter would seem to indicate that would have been the result.
Even though the genuine Victor glass mat would be cool as a period accessory, it seems it cannot fly as a SQ accessory!

El cheapo experiment this morning.
Bought a Spanish reading course from the charity shop, 5 x 78rpm 10 inch records to play with.

I tried a plain 78 and then a 78 I fixed some felt dots to the surface to replicate the raised dot mats I have seen .
Nice to have the on the fly vta adjust for quick easy changes.

Tbh to my ears I like the sound of the plain 78 underneath.
So maybe that means an acrylic platter mat may be to my taste.
Oh well only $20 to buy one and see if I can successfully turn it down to 293mm.