KR> Hours to build?

[Chris Prata]

Here's another noob question. How many hours does a KR1 take to build? I know 
it can really vary, but I'm hoping a few answers will come through and give me 
a ball park.
Magazines used to say you could build one for $400, in about 40 hours, and it 
would go supersonic. But now we have almost 50 years on the design (can you 
BELIEVE that!) so realistic numbers are avail.
OH, what kind of $$$ have builders spent in recent build?
KR2 info ok too, they are prob similar ballpark $ and time.