Question on finding RF power transistors....

First off, I understand the idea of parts sources being a "dear thing"! If nobody answers .... I'll understand!!!!

So let's say I have a radio and it needs a driver and a final.

For the driver, SAMS says: 2SC1957 or 2SC2314 or 2SC1678

and, for the final SAMS says: 2SC 2078 or 2SC1306.

So I go over to rfparts and, great! They have 2SC1957 in stock.

but when I try the 2SC2078 or 2SC1306........ NOTHING FOUND!!!!!

So, if I go Googling out in the wild wasteland......

2SC2078's pop up...

Question on finding RF power transistors....