You don’t need all that stuff, so it has to be cheap to entice you to buy it. Offer half, see what happens. Seller can say no, some get offended. Leave them your phone # in case they change their mind.
It’s harsh, but sellers sometimes think in terms of what they paid, or what that item sells for new today, especially if it’s old US made tools. But you can outfit yourself pretty well for $500 using the cheap foreign stuff until you learn enough to know what tools you really use and can appreciate higher quality.
Just a thought.