So-called "hotkits" are a DIY abomination.
Overly complex with UN-needed multiple pin-headers and daughter boards and you're still left with #$%^&* sidejacks when you're done.
Extra points of possible failure = trouble-shooting nightmare and reliability issues...
REVV RED
KLONE
Tabletop users and other sidejack ensorsers (and top-jack aficionados alike) can still get better easier-to-build kits elsewhere for the very same proffered circuits.
I'm sure this will appeal to some people, somewhere, over the bainrow...
The NOT hotkits leave me cold.