Well, I'm looking at it from my perspective which is attempting to rebuild and retro-mod an entire car all at one time and due to that sometimes the pricing of certain parts makes them out of reach due to trying to build an entire car. You of course cannot buy brand new mustache bars, but you can get a used one, blast it and powdercoat it for significantly less than a new one from Kameari and functionally its the same thing.
I personally cannot control fluctuating currency and I have to look at things as a person currently living in the USA with no other way of buying parts than ordering them from the USA with USA dollars. I know its not Kameari's fault that prices are high because of exchange rates. However, it is not the end user's fault in the USA that due to those exchange rates some of their parts prices are somewhat unreasonable for what the part is.
I personally don't try to do things half-assed at first only to have to re-buy the same parts later. Sometimes it happens and sometimes I have to make do with what I can afford for a certain thing. Am I running a used $80 280ZXT turbo manifold rather than a $1300 Greddy manifold, you bet I am...however I did buy a brand new Garrett turbo and brand new Greddy BOV and brand new Tial wastegate. I've bought all of my suspension components from aftermarket companies in North America such as Modern Motorsport and Techno Toy Tuning because they are high quality, proven and reasonably priced.
Would I love to be able to go to Japan and buy up all of the amazing aftermarket Japanese parts that I need? Hell yes. I would do that in an instant if I could afford that.