Hells yea, I'm also a huge enjoyer of the 'diet multiclassing' you can do with kits, especially with the supernatural ones. While I found the current mechanical execution of these too ambitious for standard kits, I greatly enjoy the narrative fantasy of each one and feel they'd make for interesting character angles to work with.
If you'd like, I'd be happy to toss ideas back and forth or proofread when you start revising. There's some real cool stuff here.