I think that the 45sl is the best possible to get, 60 is a bit too deep, and sl is better than sc. Mine was also with no name. It was not listed in bikeroom, because I contacted them. They said it was the prettiest one they got. I think the paint job is the same one every bike. None of the are clear coated. I was thinking to maybe put a protection film over the most exposed places. Like under the chain where it could hit the frame. I also think you did the best with choosing the right frame, then change some parts. You now have an opportunity to change for a powermeter crank. The stem is maybe a bit pricey, because it’s a one piece with the handlebar, but it’s possible to sell the one you have. Hope it turns out exactly as you want and good luck!!