DApps with Ethereum & Bitshares payment flow?

[DApptothefuture]

Does anyone know a simple way to implement a DApp with its own access token/currency which uses Bitshares UIA functionality and Ethereum Smart Contracts. 

I think I am overcomplicating how the transaction fee functionality would have to work.  Since both BTS, Ether, and Gas are required to run all the different components of the DApp is there an easy way to manage that with one token so users can more easily use the platform?  The only thing I can think of is algorithms in the background that convert a "core" application token into either BTS, Ether, Gas to complete the transaction.

Any thoughts?