Why don't you install a mCCR feed into your Evolutions, say via the manual O2 port and avoid having to sell and rebuy? That way you have the option of the best of both worlds... a constant flow orifice feeding your system and backed up either by you hitting the bypass or by the solenoid kicking in as a last resort.
You get to keep the Temp Stick, built in Deco and HUD and put less load on the solenoid and batteries. You also have a very cheap conversion back to the real world (sorry
) should you decide that you have made a huge mistake!!
Steve