Tees Exile
Striker
Those kits are a canny way to move up from kit brewing, to extract brewing. You don't even need to be able to boil the full 23L, just a ~8L large saucepan on the hob will do the job, and the 15L of cold from the tap sorts out most of the cooling too.
Once you crack those, its literally nothing to start designing your own beer!
Just did it. It’s my second kit of a similar type. I think the next move is a Bulldog Brewer or a Grainfather