Cyrus,
I'm with irdave on this one. In fields where rigorous engineering is required there's LOTS of design reviews. And the reviews focus on risk, forces, factors of safety, life time, etc. etc. etc... The BEST engineers are very willing to put all their calculations, testing up for review and peer evaluation. They know a review is a critique of the design and not a critique of their own engineering capability, experience, etc. It is merely that, a critique choices and analysis that led to a specific design. Remember, all design is inherently a series of compromises around a set of constraints ideally optimizing along one vector... a review of the constraints, compromises and your optimization vector is always worthwhile, especially if its done by a knowledge peer group. it appears that this forum has a number of knowledge folks that can (and have) been critiquing your design. I urge you to thank them for the effort they've applied. Their comments seem valid. Their goal isn't to crush your new business endeavors but rather help you deliver great products and for the community have a richer set choices when it comes to building up their cars. Sharing your work, as it were, can: show folks the rigor you have applied, stimulate conversation, drive out potential failure modes, improve designs, and at the very least build trust and confidence in your ability as a designer / fabricator in the community you wish to foster as customers.
I, also, have some questions about your design, and would really like to understand the load cases you've considered and the calcs and FEA you've completed. at the very least you'll be able to show off all your engineering muscles. i'm confident there's people in this group that will "get" the math.
thanks again for all the work you've already put into this and for helping grow the 2002 community!