Hiring a professional to work with you on a DIY build is an excellent option if you have the budget and can find the right person. Ideally, you need someone with carpentry and general home building skills, who can also work flexible hours. They also must be trustworthy, reliable, and easy for you to get along with. Retaining the wrong person could well prove to be troublesome to nightmarish, so the interview is critical.
A possible job description scenario/ad might be: