Generally, the ownership percentage of the profits and losses control the amount of income and expenses reported on Sch K-1. I understand what you are trying to do. For 2018, it is probably too late to change anything other than reporting 1/3 of the ordinary income and other items on each K-1. Draws are treated as withdrawals out of the capital account(s).
However, for 2019 and forward, you change your LLC agreement to reflect some guaranteed payments. Since I presume you are treated as a partnership as opposed to an S corp, under partnership rules, guaranteed payments are treated as income to the partner, and a deduction to the partnership, thus reducing the ordinary income of the partnership and the share of ordinary income to be reported by the partners not receiving the income from those projects.
There is such a thing as specially allocated income and expenses in partnerships, but have been out of the business too long to remember anything about it, other than to know it existed.
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