If the goal is a "respectful price", then for a beginner selling ancient coins, I'd recommend staying far, far away from
ebay, especially if you've got some really nice coins to sell. There are far too many fakes and scammers on
ebay; experienced buyers will assume coins offered by a newbie are fake or there's something else wrong with them. It's nearly impossible for a beginner with no reputation to expect to get anywhere near fair value for their coins.
You're in Europe - I'd recommend one of the large British or German auction houses. The companies listed on the
CoinArchives page might be a good place to start.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis