I think you have the basic framework in place. Under obstacles, you may wish to address technology limitations from a benefit-cost standpoint. Mills that can accept small diameter timber have made significant capital investments, and this may be an obstacle that you have not yet considered, or have, and opted to avoid. If the latter, you should at least make mention of this being outside the scope of your study.
If I think of anything more, I'll follow up.
CB
If I think of anything more, I'll follow up.
CB