I don't think there's any way you could build that car for $150-175K. I've seen a lot lower-class builds 15 years ago that went over $150K and I think that's fairy typical for a shop-built car. Just add up the parts on Bruiser and you're well over $100K. And I think there's at least 3000 hours in it over 3 years (that's less than half-time, one person), if not a lot more.
Hell, I've done ALL my own work and have about $70K+ in just parts and materials in mine (haven't added it up lately), and I still have to get it painted, chrome the rear bumper and get the interior done. I don't know how many thousands of hours I have in it and it's not even assembled.