tubes for leben cs600

hi there.
i look for good tubes for my leben cs600 that connected to my devoe nines speakers .
i dont know alot on tubes i have now kt77 and kind of el34 tubes but they are in the end of them life. igot suggest to buy from jim mcshane and he give me this suggsted :

(1 quad) 6L6GC-STR Tung-Sol reissue, $87.50
(4) 6CS7 - 2 Sylvania & 2 Raytheon/Japan, $38.00/set
(1) 6CJ3 GE NOS USA made, $7.50
but when i try to invite he email me and say that only 2 6cs7 sylvania he can provide because he dont have in is stock 2 more c6s7. so i dont know what to do i most have new stock of all the tubes to my leben ,i wonder to buy from the company leben extacly what they put inside the leben but to order it is about 400$ to israel all the
tubes new, or to buy from jim mcshane the tubes that he have for 120$ besides the 2 6cs7 that he dont have in stock and he dont know if he will have it ,so maybe to buy the two that he miss from ebay bout i dont know what to buy from ebay very confused
please any suggestion about th tubes what you says my friends
thanks alot