Flyhighspeed,
You won't 'miss out on forming to' company SOP's in a type rating. Airlines generally fly aircraft very similar to the Boeing/Airbus SOP's with minor differences. So adjusting to those company changes are easy.
There will be many more SOP's that you will actually have to learn once you get to an airline regarding the operation of that airline and what they want you to do on the line.
Can't say I'd have bought a type rating without a job to go to. That's insane, and if it works out very very lucky.