I own a SOTA Cosmos Eclipse and have owned a gen III Star Sapphire so am familiar with the earlier tables.
My opinion is that a refurbished SOTA is going to be a far better table than the Technics. Especially if you go with the magnetic bearing, the phenolic sub chassis, and the Eclipse motor package. I also suppose you would get a lead and acrylic arm board. The Sumiko arm you have is highly regarded even today, so it is worth keeping. Certainly not cheap but you get a table that is going to perform superbly and is smartly engineered. The SOTA suspension is one of the best out there, the magnetic bearing is going to have the lowest noise floor, and the motor controller provides a level of speed stability that is remarkable for a belt drive, and while a direct drive might be tenths or hundredths of percentage points more accurate, it is not enough of a difference to offset every other aspect that it is less capable of than the suspended design with lower friction bearing assembly.
My vote is get an updated SOTA.