What do I need to spend coming from an all-vinyl setup?

$2500 will get you some Townshend Pods and Synergistic PHT, make your table sound so much better you forget all this digital nonsense. 

@dhcod If you are looking for a user experience closer to an LP collection, I'd strongly consider Roon. So you'd ideally want something to run Roon core in addition to the streamer(Roon end point) and a DAC. Suggestions:
Roon Core: SonicTransporter from Small Green Computer ($1K new) or if you're DIY-ish an Intel NUC (see JDarko video for good explanation)
Roon Endpoint: Sonore opticalRendu or if you're DIY-ish one of the Raspberry Pi-based ones like Allo or Hifiberry
DAC - so many threads...so many DACs...Ares II, Audio Mirror, Soekris,  are worthy contenders
With used prices on one or two or them you can probably hit $2500 total. Cheers,
Spencer

There's plenty of digital stuff out there, but I would not sell my turntable until you know you're satisfied with your digital setup. Maybe cull down your record collection but bad digital can be a real turnoff and then you stop listening.  Not knocking digital, but you really need to find a setup that satisfies you.  

Hello, the OP plans on downsizing, so building up the turntable is not an option. 

As much as you desre.