And, of course, mind the pinout, since many (but by no means all) of the 2SC/KSC series BJTs come in BCE rather than CBE (or, depending on your orientation, ECB rather than EBC)...
(I enjoy a good 2N3707 or 2N3708 as a pinout-correct sub in these situations, but their specs aren't much closer to the 5088/9 as Antonis points out below...)