Their lack of response probably saved you a lot of money. I'm looking at their ready-to-ship rifles and I'm seeing $7,338 for a gun that would cost you maybe $4,500 from a much more reputable builder. And they even have a meaningless 3 round 1/2MOA group with it. If you're looking to spend that amount of cash I'd strongly encourage you to use another builder. I'll list a few below but there are a bunch.
R Bros (check this one out especially, they even do load development like HCR does but better)
TS Customs
GA Precision (lead times are probably crazy so probably not worth it)
Longrifles Inc
Short Action Customs
Southern Precision Rifles (also known as Bugholes)
I think R Bros is the closest match to what HCR seems to offer but any of those builders will build an absolute lazer of a rifle and give you advice on how to build it. I personally placed a barreled action order with TS Customs today but for a non-hunting purpose. And I've used LRI before as well.