IIRC there was a community member who was building an OpenERP appliance but I don't think it was ever completed (and sounds like it would need an update even if it was...).

Dolibarr I had never heard of until now...

If it's an itch you like to scratch then I'm more than happy to get you headed in the right direction...

If you've never heard of TKLDev then a great place to start is probably the blog post announcment and then there is the full docs. I would strongly suggest that you have a read through the docs, download TKLDev (e.g. install as a VM) and have a play. Then once you are ready to start building I wrote a bit of a first time appliance builders suggested workflow.

I hope it doesn't appear to daunting! It'd be great if you can follow it through, but so long as you share your progress as you go, even if you don't make it to the end then it's still valuable to the community. Even just documentation of the install process is a valuable start...

As always if you get stuck or aren't sure where to next, please post back. Feedback (positive or negative) at any point (whether it be about the tools, the documentation, the process or anything else) is always most welcome and generally useful! :)