I want to get a new 700c wheelset for an old caliper-brake cross bike. I plan to put 38 mm tires on these wheels. I'm looking to start using it more for gravel-type riding and the 32s I have on my other wheels just don't cut it.

Ideally I'd like to have someone build the wheels and use the old Powertap G3 hub that I'm not using but I can live with just regular wheels or even off the shelf.

So I'm hoping someone can make me a recommendation for two things:

1. In the very least, a set of off-the-shelf wheels that I could buy with the appropriate internal rim width appropriate for 38mm tires. Not 17-19 mm but (and I'm guessing here so educate me) something like 22-26 mm, yes? I already have other wheels for thinner tires so this wheelset will never need to take smaller ones.

2. Ideally the name of a good wheelbuilder in the Boston MA, USA area that I could talk to about building a set with the Powertap. I've been to most of the local shops over the years but have no idea who is skilled at wheelbuilding and who is... average.

(I realize I could contact Wheelbuilder.com and other online places but if I can keep this local, I will)