For a first buck, especially coming out of the custom shop, I would strongly suggest going with the 112. The custom shop finger groove contours are very different from a regular production finger grooved 112 (same goes for the custom shop 110's). The custom shop finger grooves are a touch deeper and closer together, the fit and finish of the custom shop finger grooves have been in my experience perfect. Totally smooth and seamless. Go with the BOS Heat Treat S30V it is the best S30V I have ever used, satin finished of course. No serrations. Custom shop 110 and 112 serrations are meh at best, seem to be mostly for looks than function so a plain edge is best. With a custom shop 112 you are stuck with brass bolsters and handle scale choices from the custom shop wood scales only for some reason. So take your pick. Ive got 2 custom 112's and 5 custom 110's all within the last 2 years. Turn around time is one and a half to two months.
All came back razor sharp, perfect fit and finish, blade dead centered and the custom scales on all of them look drastically different in real life vs how they are presented online. Fortunately they showed up looking better than they do online. The wood scale choices all look far better and quite different in person. I love my oak handled 110 and 112.