[Elecraft] Chasing the Update Mods Train?

[Eric Rosenberg]

I bought an early K3 (s/n 525).  I believe I know which mods were done 
(everything through September/October 2009), but I'm not sure exactly 
sure of it, nor where the previous owner stopped, where I should pick up 
and what is worth or not worth doing.

Any advice on how to figure out the next steps to take is greatly 
appreciated!

73,
Eric W3DQ
Washington. DC