How do I set up correctly for eBay sales

I’m feeling like a dunce. I’ve been using Quicken for a long time, but doing basic things like checking account and credit cards. Now I want to be able to track my eBay sales. We don’t have a store, but we do intend to sell a lot of stuff we’ve collected over the years, and I’d like to be able to do it correctly. I’m not sure how to categorize everything and what new accounts I need to set up. I’ll have to track the item sold amount, the eBay fee, and the shipping charge done through Paypal (no fee on that).

I know how to download a QIF file from PayPal and I know how to convert a .csv file from ebay into QIF. What I’m not sure about is where to put all that info. I’ve hunted for tutorials and forum help but can’t find anything. Do I set up an ebay account (like a checking account and import the data into that? The sold amount would be income and the fees an expense, right? Do I need to involve my checking account (where the money will be transferred to) in this process…? Do I need an “undeposited funds” acct? I’m just at a loss. My brain wasn’t made for accounting. Thanks in advance for any help!