I think a first time frame can be as good, or even better than production. I knew going in it would be tough, but took it as a challenge to build a rideable first frame. I spent 2 years researching, reading, asking questions, and finally building. It turned out great and it's still my favorite ride 5 years later.

As a comparison, my Fuji steel frame I had was out of alignment by 3mm BB to TT and the HT was out the opposite direction from the ST. It was a reynolds 853 and weighed 4.2lbs for a 56cm. My first build came in at 4.0 lbs and is in alignment by 1mm or less in every direction.

Here's #3 I just finished, a gravel rig with lugged BB, so yes that can be done too, just use oval CS's and go long (443mm on mine). Fit's 44's just fine, here's a pic with 38's on wide rims.