In 2009, I got an Lm60 kit from AmpsLAB (they sell Mk2 now). The enclosure is from Design Build Listen, power supply is from Hypex (not sold anymore). Each channel is built on a relatively small (120x60mm) one-sided PCB and uses one 2SK1058+2SJ162 pair in the output stage. With proper biasing, the sound is good, esp. for such a simple and compact design. I should have started with this one, rather than with the (equally inexpensive) K-8LS.
