I’ve got following DD tables Technics: Sl1200, SP15, SP10 MkII and MkIII, Pioneer Exclusive P3, Yamaha GT 1000 and GT2000, Denon Dp 75 and DP80 and a bunch of belt driven tables. When it comes to price/performance ratio I can’t think of anything that can touch P3 and Dp80. P3 is not expensive if you know were to buy in Japan but it will cost at least 3 times more here but D80 is still dirty cheap. In my books the performance of DP80 is not that far behind the one of Sp10MKIII and exceeds the one of SP10 MKII. You can get Dp80 in DK300 plinth or DK2300 (two arms plinth) for less than $1200 which is the basement bargain price for the extraordinary good table. There are cheaper Denon plinths available, but their construction is not very good. DK300 is a very decent plinth but a better option would be to mold your own plinth using epoxy and bentonite. It is not difficult to build one and it will cost you less than $400.
Sl1200 will blow TD160 ( I've got one in my collection and I grew up with TD125 which I replaced with SL1200 and never looked back) out of the water so any DD table that you listed would be a big step up. Luxman is not in the same league as DP80, Sp10MK II or GT2000. GT2000 is another option that you should consider) as it come with a decent arm and you can have it for $2500.
I’ve got a couple of DP80s with plinths. PM me if you are interested.