I'm a die hard Recaro loyalist. For your frame, you may want to look at the SPG XL or the Podium (L).
My car came with the OEM LWBs, but honestly they are not ideal for serious track driving. The seating position feels off to me (even with angle brackets) and I wish I could sit lower. I already...
From my research over the years, it seems that only Manthey themselves has the ability to code out the airbag light for 991s. A couple local shops have claimed this ability, however I have not seen any success stories.