living in the US you have a much better location for restoring an american car... No chance to get these bolts here in Germany - except from Totally Stainless by ordering at the big part suppliers in the USA.
Apart from this you´ll have to be aware what kind of stainless steel bolts you´re buying at your local industrial supply store. Stainless steel has not the same grade of temper as regular steel. Not every bolt showing the same diameter will be able to "take the burden".
The second reason I liked the Stainless Steel fasteners: you have to use a special grease for these bolts, so you´ll have to adjut the torque. There´s a list for torquing each bolt included in this kit - but of course you can copy that list...
Don´t get me wrong: I don´t want to advertise their product - only wanted to tell that I think it´s a good product worth its price. My 5 cents.