Courses on QA for ERP implementations

I do quality assurance lead work on medium scale ERP implementation projects, relatively complex and 1-2 years long.  Most of what I do is helping clients create their testing strategy, plan test events, gather results, train and manage testers, etc... I do very little actual testing.  I've taken some courses on quality assurance (for example, ISTQB), however I find most of the information is specific to greenfield software development; I struggle to find anything specific to ERP implementations, which are a different animal entirely.  There are some concept similarities, but I've had to build my own system for what I do.

I'm always keen to sharpen my skills, but the well is pretty dry here.  Am I alone in this?  Is anyone else looking for this type of information?  I can find a few blogs here and there, but nothing substantive.