I haven't grown yellow Orinoco either, but I have looked at it, and would think it more in line with Frog Eye, or Lizard Tail, which are older flue-cured tobaccos that are dissimilar to so-called dark Virginias which are more burley-like. Frog Eye is much like your standard bright Virginias.
I think you have made valid choices. Although the orthodox decision would be to grow one flue-cured, one burley, and one oriental, I prefer dark virginia (Goose Creek Red) over burley, and it grew better for me in Alberta than any burley I have tried. My Goose Creek is something i enjoy on its own, and it fills the niche of increasing the pH of a blend with flue cured tobacco just the same as burley. It is smokeable sooner, requiring less age, and has a slight spiciness.
I havent had much luck with yenidge. It was very unproductive, and fire retardant. Bursa... it grows well, but isn't exactly the flavour profile you're thinking of when you think of Turkish. It is much more bass note, and less tenor. I might reconsider. I haven't grown Prilep, but it is quite popular for other growers in the forum. Moreover, WLT either does or used to sell it. I have some, and I really like it. Maybe consider Prilep.
If you are still unsure about which flue-cured tobacco to grow, and decide against yellow Orinoco, I have a Canadian variety from the 60s called Delhi-34, I could send you if you give me a private message.