I have had good luck getting this sort of thing in the states from Big Daddy Enterprises.
http://www.bigdaddy-enterprises.com/
Todd from Big Daddy has kits catered to the early Bally, Williams and Gottlieb solid state games, and ships daily. He's answered a lot of questions for me and I can't recommend him enough.
While he is overseas, and the shipping does add a slight delay, he is dependable and ships quick.
Sorry, I cannot agree.
They do not give you a tracking number with your order
I placed an order early December with 'Big Daddy'. After 7 weeks, I have not recieved my goods yet
I have sent them an E-mail, but I have only recieved a 'We will look into it' as a reply