https://www.amazon.co.uk/JOM-7105-Universal-Central-Radio-Remote/dp/B003QGHALC
Looking at the wiring (number and colors) this one appears to be the same logic in a different form factor, but comes with a switch blade type keyfob. Got it all wired up and working thanks to this great thread. Now on to get the transponder chip and (insertable) key blade cut.
My kit came with 2 incompatible VW blades and they can be ordered from jom.de, but have something lying around that may work. Will see.