I have a few mins of research and I think it may be worthwhile to attack this issue as a generic bitshares for eCommerce solution package and not single integrations. Doing so would open up the doors to many more merchants and also show a sign of professionalism to new comers. What I mean is something like this:
https://bitpay.com/bitcoin-for-ecommerce#pluginsSo the backend is consistent (bitshares ecommerce php lib) and front-ends are all different frameworks. I think it's more ambitious but its the right way to tackle the problem. I have begun estimating time it will take and can try to tackle the problem with this in mind. I will come up with an estimate of how long it should take and then can start development.
If we have two different solutions for two different plugins, we may have to "redo" all the work to integrate them under one library in the future anyway...