Hi,
yep i've also noticed this guitar,
all i know is that it's not a fender, and got a H-S-Hconfig as you've said.
here's another shot with the headstock, can 't read the brand though
Richie is playing so many diffrent brands on stage (Taylor, Gibson, Fender, Martin, duesenberg, Zemaitis..) i don't really think he'd play his Chinese ESP/ltd signature but he's still playing the one that inspired it. note that he's also playing fender relics superstrats probably custom made.