Tailoring shirts vs. Searching for the perfect fit

I have wasted a fair amount of time trying to find that perfect slim fitting dress shirt. I have an assortment of shirts in my rotation, but none truly fit the contours of my torso. I am skinny, but fit--my upper torso is relatively broad, so a lot of the slim small shirts pull around the chest. Express 1MX Small is a close fit, but too tight (again, around the chest); other brands like Banana slim, CK slim and Nautica athletic fit are juuuuust a bit too large. Interestingly, Merona slim is the best fit and hugs my body pretty close; but the quality is poor, obviously. Also, the absolutely perfect fit is Kohl's Marc Anthony shirt--no billowing, no pull, BUT the sleeves were tight such that I couldn't freely bend at my elbow.

My question: Should I keep searching for that perfect OTR dress shirt, or should I just buy some shirts that fit well in the shoulders/chest and have them tailored (darted?)? Also, can I assume such tailoring would be relatively cheap (< $15)? Thanks!

edit: I'm 5'10", 140 pounds with 38' chest and 30' waist