Just call them and request a higher limit; I know everyone recommends not doing it but it's what I've always done. Calling them ~3-4 days after making the account and they start the accounts off at 100/5000.
Don't give them a reason to suspect anything and they won't dig around. If you call and go "Hi, my name is Mike" when the account says your Steve, then you got a problem.
Edit: If you really don't want to do it yourself, check Fiverr. Search for eBay limit, there's a few people on there that will call eBay for you and get the limits raised.