Then it will never work. You will never pass a "fair tax" which taxes "milk, bread and baby-formula" at the same rate as a Rolls-Royce. Never happen.
People will not be taxed the same on milk, bread and baby formula as they will be taxed on a Rolls Royce because people will receive a monthly rebate equivalent to the FairTax paid on essential goods and services, also known as the poverty level expenditures. I suggest you read
FAQ #3 at the Fair tax website before you make anymore statements.
With all due respect, I'm not going to wade through your entire web site simply to point out the fallicies in a national sales tax.
You can create all the "progressive" protections and rebates you wish (at the risk of overly-complicating what is supposed to be a simple system), but my objections stand.
Your plan would end up entailing exactly the sort of problems I raise. I've seen it at work and you haven't. Thanks.