I think those Coke Bottle cars are a piece of Cobra history in Australia and as low volume production vehicles they enjoy a special place. There are plenty of us who have done nice things with the Ford 5 litre motor to make it look the part and perform pretty well. I would also suggest that you look at the Kenny Bell SC's as they are compact and fit well under the Cobra bonnet. I was about to use one but went the top end/cam route instead.
At the price range suggested, that car seems very good value. Be prepared, its provenance is worth something as well.
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