John,
I think the 48 IDF's run about $500 ea. new, add $100 for filters plus maybe $150 for the linkage, then a bit more for the fuel lines, anciliaries etc. So you are looking at an investment of about $3K all in I guess. You can do it cheaper by getting used IDF carbs on ebay, they come up in pairs for Bugs on occasion and sell for around $600 the pair.
Consider a similar set up off the shelf (but with the higher Redline manifold) will set you back $3500, it's comparable, but with the added advantage of fitting under the Pantera engine screen..
Julian
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