You have replied to an old topic, which will soon be locked to replies. What you need to do is start your own topic by going back to the Toys & Hobbies board main page, in the Blue box click on Start a conversation button. Create a title such as "I want to start selling my HO model trains on ebay". You can copy and paste your above question to the body of the message.
One thing you can do that will answer your question is to read the terms and time frames for eBay's Money Back Guarantee (MBG) in the link below.
To avoid claims of an item not being as described, follow the unwritten golden rule for ebay sellers which I posted below and will repeat here.
Describe all items like there are no photos and photograph them as if there is no description.
Do not skimp on photos and make sure to use clear ones taken from all angles. If there are any defects on your items at all, make sure to describe them.
Since you will just be starting to sell you need to know that ebay will impose a 21 day hold on your first few payments. On your account the payment status will be marked as Pending, the funds are there and can be used to ship the item, which if you buy your postage through ebay will automatically upload a tracking number to the listing. Once tracking shows a Delivered scan your funds will be released and processed to your receiving account within 3-5 working days. The link below explains the Hold.
https://www.ebay.com/help/selling/getting-paid/getting-paid-items-youve-sold/payments-hold?id=4816
When you go to create your first listing you will be asked if you want to use the Quick listing form, or the Advanced one. They will try to dissuade you from using advanced, but use it anyway. Otherwise, you will have Best Offer posted on all of your listings which can be a pain, especially if you do not want to accept them. You also do not want to list item for sale outside of the U.S. until you have more experience.
Before listing your first items to get an idea of the trending prices for them use the Advanced button to the right of the main search button on an ebay page. On the page that opens type in a search such as\ " HO scale GP-7 w/ DCC".
Or for a more specific search of your specific item "Bachman HO scale PRR EMD GP7 Diesel Locomotive DCC #8805"
Once you decide on a general or specific search select Toys & Hobbies from the category drop down list. Then check the Sold listings box and click on the search button.
On the results page, you can select to see only Auctioned items or Buy It Now ones.
If you decide to auction an item DO NOT take ebay's advice to start auctions at a low price; To encourage bidding. Start the bidding at the lowest price you would be willing to accept if you only get one bid. Do not offer free shipping, use ebay's shipping calculator to select shipping services and then prepack but do not seal, measure and weigh the item you will list. That way buyers will know what the shipping cost to their location will be.
Since you will be selling electronically operated items, it would be best to set up a test track a small circle or oval to make sure the DCC controls are working. Engines that have been stored for awhile may have some issues. You can upload videos of the engine to listings showing that it works.
I would suggest that you start out by selling rolling stock at first, then once the hold is lifted, start selling the engines.
There is a lot more you need to know about starting to sell on ebay, and if you have further questions about listing model train items cone back here and post them.
FYI. Before listing your first item Go to your buyer management or search online for setting Buyer Requirements on ebay.
When you get to the page in the screen shot below, using the up or down arrows set your requirements to the settings most of us use. I very strongly suggest unchecking the pre-checked Buyer payment requirements. They tend to cause buyers not to want to bid on or buy items that are enrolled into Auto Pay.
GOOD LUCK
