As a fellow person with similar dimensions, I can only echo the suggestion to get a SAS Plus seat at a minimum. Don't hope you win a bid for it, just buy it. You'll thank yourself later (as will your knees and back).

In fact, if I am honest, the 6'7" aspect even tells me you'd be better off bidding an upgrade for business.

I am 6'6" and my recent stint in SAS Plus was somewhere between comfortable and uncomfortable. You'll probably be tight on space once you need to use your tray table. Once the person in front you reclines their seat, it feels even more constrained. Despite all of that, it would feel 100% worse in SAS Go. The seat width always felt fine to me in SAS Plus.

Airlines - one of the few places where being tall works against us 😞 (but great for their upsells).