At least call and talk with Mike. He's a straight shooter. It can't hurt to at least price check, eh?
I've bought stuff from Mike, supples for my own wheelbuild. So all I can say is I've heard he builds good wheels, but no direct experience. Many others on here can chime in though. (I'm considering having him build my next set though...)
My first wheels are still rolling, and I didn't build overly conserative either. 400g rim, double butted spokes, and a MachineTech hub. Still rolling several years later on the wife's bike. Built several sets after that. Only had one taco so far (and that was because I - a 200 pound rider - was jumping with a sub 400g rim that needed a bit more tension. Totally my fault. Rode it well above intended usage.)
Take a look at Mike's T directions
http://www.miketechinfo.com/new-tech-wheels-tires.htm
It really isn't that hard if you have some mechanical ability and some patience. The only downside about building your own, is that your parts might cost more than a built wheel by Larry or Mike.
It isn't fair to compare handbuilt to a machine built wheel. Most of 'em are not built anywhere near as good as handbuilt. Even when the same parts are used. Once you get a wheel or two under your belt - you can 'fix' a prebuilt wheel.
I went with a cheaper pre-built several years ago (just before I learned to build my own for some strange reason...) and saved a few bucks, but after having them re-trued for the 4th time in a season... I lost that advantage. Ended up tacoing it too. Replaced it with a handbuilt that's still in use 11 years later.
JmZ