There are quite a few US manufacturers that make very high quality custom race suits (or street gear for that matter). I just ordered a full custom suit from Z Custom in S. California for $1600. There's also Helimot, NJK, Zooni, Vanson, Barnacle Bills, and quite a few more. All of them get great reviews from racers and track day junkies alike. The
only bad thing I've heard/read is that Vanson's customer support sucks. I've also personally witnessed Z Custom, Vanson, & Helimot suits crash, and they all did very well. Have a look at the WERA and BARF forums for a ton of reviews on the various brands.
All of these are also made in the US, unlike the major brands (including Dainese).
Plenty of options available if you want a full custom suit.