Replacement for VPI TNT mark v

I don't think you know how good the Classic is.... and the support that VPI demonstrates time and time again.....and when/if you are ready to move on, how good the resale value is. All that has to be taken into account. Put a Benz LPS on the Classic and have your jaw drop.

Rega P9 would be a good choice for a smaller table with great sound.

I have a Transrotor Fat Bob, and can vouch for its small footprint. However, it does have a stand alone motor pod to take into account. The Oracle Delphi is a very compact unit also, and sounds great.
About the most compact unit I have seen is an Empire 208, and if you get one of Esoteric Audio's rebuilds, you will something that competes with the best, for about what you will get for your table used.

Some good suggestions for tables, but they don't (especially the Oracle, and Rega) sound anything like the TNT with it's very full, and slightly dark sound. The Oracle, while really great sounding, is as different sounding as any table that I can think of. I looked at the Pbnaudio table and I must say that I am intrigued. Given that you could use the same platter and same drive system that you now have, it is probably your best bet for retaining the TNT's sound with a smaller footprint.

When you are interested to see the light in the audiophile darkness, think about a Basis Turntable with Graham Ph. Supreme.