1. I'm sure Bitshares appreciates your interest, and would be a reliable platform for clockcoin liquidity. Basically you need to convince a committee somewhere somehow to enable it as a bitAsset (and they don't even support Ethereum yet). Or you can speak to someone like OpenLedger.info, to support your coin of choice, or create your own GateWay and issue your own asset (which can be costly).
2. You can certainly interface with the DEX programmatically.