It is possible.
Just have an 'ebay contingency plan'

Have a 'pot' of money (capital) sitting in your paypal account, in case funds are held.
Shouldnt be too much of an issue, and in no time you'll have your 20 feedback.
Just dont be silly and list THOUSANDS of products with big value - if payment is held, you need to pay for this out of your capital until funds are released - if you dont, expect to do some explaining, or face negative feedback.
Start slow, and you shouldnt have any hiccups.