An idea. Since you consider digital sound beats analogue, why do you remain heavily invested in analogue? You say you would sell up if you didn't have ~3k albums. But selling up is logical for you.
Record to digital all the LPs you don't already have on digital or can't hear for free on the internet. Then sell all your analogue kit plus all the albums. This will realise many $10,000s.
Results
1. You will be a lot richer
2. You won't be wasting space storing 3,000 LPs
3. You will have better sound (in your opinion)
What's not to like???