Check out datacentermap.com and submit a quote request for your preferred region. They'll send you multiple quotes in an agnostic way. Similarly, @quotecolo offers a similar service. Either way, you'll get a bunch of prices for the same product, then you can evaluate each company based on its credibility.
I'd go get some provider-agnostic quotes in, then bring your top 3 back to the forums and get input.
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