I'm currently working on releasing Item Random Properties. This will enable randomized base, ex, and sp params as well as some other properties to be applied to an independent item (current focus is equipment).  It should be done either sometime today or tomorrow. At minimum it will require an Item Foundation update. More updates will likely need to be done for new releases in the independent item suite.  I'm tackling affixes next, with an optional quality identity field, and a focus on build identity and conditional modifiers.