ok, had momentary brain fart... was thinking the pnp base resistor in series between two transistors.
Like this (R3 is opto current limit resistor):
Sorry, but that's complete nonsense
Check my PIC 'extras' for an example of high side switching using NPN/PNP.
But the simple emitter follower suggested earlier (post #5) would do all that's required, as you're only powering a grounded LED.