There are still some fantastic kit manufacturers out there, though most specialize in ham radio gear rather than general electronics. Give these a try:
Elecraft
Small Wonder Labs
Oak Hills Research
Emtech
Milestone Technologies
Ramsey Electronics
Ten-Tec Kits
Wilderness Radio
Kitbuilding is still alive and well!
There are still some fantastic kit manufacturers out there, though most specialize in ham radio gear rather than general electronics. Give these a try:
Elecraft
My K2 was an absolute blast to build. My dfaughter enjoys it as well. ;-)