There's a 2000 VTC bounty available for helping us upgrade the web wallet to work with the latest Vertcoin wallet version v0.11.0.2. The code is here:
https://github.com/dayreiner/vertpunk/ and is written in node.js. Please PM me if you are interested.
Does it make more sense to use copay as a starting point? The coinpunk project that it's forked from discontinued development two years ago, and recommends people to use/build something else. I know myriadcoin web wallet is based on copay, and I believe decred as well.
I'll look into it. In that case though we would need a conversion tool for vertpunk wallets and get everyone to convert their wallets.