Vetta 2 into Orange 4x12 and Orange 2x12 in split stereo

[lemon67]

NEED HELP WITH!

sooo. the both the beauty and the curse i've found with the line6 vetta 2 IS alllllllllll the stuff you can do with it. Here is the back panel here:
Line 6 - Vetta II

What im wondering is, I have an Orange 4x12ppc-HP cab rated at:
400 w (RMS), 8 ohms / 2 x 200 w (RMS), 16 ohms

and an orange PPC212 rated at 120 with vintage 30s
16 Ohms, 120 Watts

I want to get them both to work with the vetta at the same time in stereo with the 2x12 taking on highs from my vetta and the 4x12 a lower chunkier amp. How do I make this work so that all the Ohms and everything is good? the vetta puts out 150 per amp, so I dont know if that would work with the 2x12? and I dont know what to set the ohm selector switch at the back since both the cabs run at different settings.