Cradlebuilding is an entirely front-end-loaded art, and as TravelLifts have become more and more prevalent in clubs and marinas it is a dying art as well. If you're doing lots of cradles it's a nice, scalable business; you pull your templates and jigs out of the back shed and cut and weld away. But if you're doing just one it's a ton of upfront work, even if you have a yard full of cradles to walk around and get ideas from. For one cradle, any sane welder would charge a lot more for design than a scaled-up welder would for the shipping. Those who don't, are likely to cut corners here and there.
May I suggest
http://www.jowi.com/
Jowi is in North Carolina but ships cradles all over the country. My yacht club, on City Island just north of Manhattan, lacks a TraveLift but is blessed with a very effective railcar/tide system, is a cradle-only club and this is where we get all of our cradles. These are full-featured cradles, with good folding characteristics and a huge amount of adjustment that can fit just about any boat -- they have almost certainly made a cradle for a 35-3 before.
I have no connection with Jowi but it happens that in a moment of misplaced conservatism I happen to own a brand-new Jowi model 1.5 which waiting to be traded (by Jowi) for a Model 1. It is too big for my club's rail system but it would accommodate your 35. If you want to make a deal let me know.
tenders