I've decided to list this project on UpWork https://www.upwork.com/jobs/~01ddf90e1e47037663.  Im trying to develop just enough code so a .Net app, such as a website, can Join and make a payment proposal.

All the code will be contributed back as open source, via the repo https://github.com/bitcoinbrisbane/copay.net

Quotes to do the work are between $200 and $500.  If anyone would like to donate some btc to help fund this project, the address is bitcoin:3EnX8t6u3ng5jhA9vju4AzQuoN9tLPyB6N

Thanks!