I don’t even know how much to ask for the equipment or whether someone would even take an interest in it. Any ideas out there?
The main question is WHY someone should buy it from YOU and not from many other dealers or private collectors with reputation (good return policy or even paypal buyers protection), all these stuff available online. It’s not easy to sell vintage analog gear.
Probably if you can offer your gear for lower price or if your gear is in immaculate condition (with og boxes, docs etc). Otherwise who need a used cartridges and turntables from unknown seller with no feedback online ? Or you expect cash and local pickup ?
Same about your record collection, remember if you will sell the whole collection they will pay you very low price per record.
Anyway, even if you will sell all your gear, I hope you can buy it again, probably you can’t buy your record collection even if you want to.
What is the problem? If you want to sell then just try to sell it (it can take a long time), maybe it will be impossible and you will find different solution.