I feel his pain, I went thru the same thing , just took me 8 months to get my TR6 engine and OD back but he did a really great job on both. I think he takes on a little more than he can handle and trust very few machine shops to do accurate work and he verifies every dimension before building. But in Kais defense, the crank shop that lightened my cranshaft said one week and it took them 2 months, they kept pushing my job back for their bigger volume customers, and the nitrider took 1 month instead of 1 week, I did call the crankshaft guy he used and he did verify he pushed Kais job out
Hondo