There is an "RC Jets" forum on RCU. I'd post the servo question there in case someone has built this plane and knows what it really needs. A lot of the people who build and fly jets may not read the beginner forum very often. As a novice I know I've never looked in the Jets forum.

If you've never flown RC planes before I'd definitely suggest getting a beginner plane of some sort and learn to fly it while you're working on the jet. You might find a good deal on a used setup that doesn't need any building.

<<< edit >>> Just noticed your post about the wind tunnel, etc. That happens to be the first info you've provided that indicates you're not a total beginner who plans to learn to fly RC aircraft using a jet.