...Would it be blasphemous to do one to a Heritage?...
Why does the paint selection make a difference? Let's face it, a "Heritage" is the same GT as all the others under it's skin color. And, while I loved John Wyer's organization, the GT40's that he ran were privateers, not factory cars. And, they (P/1074 and P/1075) were rebuilds of Mirages (M.10002 and M.10003). There is a lot of hype in the forum about the increased worth of the "Heritage" model, which was originally priced by Ford as a $13,500 option (Wow!). Seems like Ford was making a nice profit on the Gulf sponsored colors, after dropping their own sponsorship of the GT40's and forcing Wyer to obtain funding from an independent source.
In actuality, the true winning Ford heritage colors should be the "Mark II Black with Silver Stripes" version (1966 Le Mans Winner P/1046, a Mark II GT40), and the "Mark IV Red with White Stripes" version (1967 Le Mans Winner J-6, a Mark IV GT40).
I'm not trying to demean the current GT Heritage models, as I think thet are a wonderful tribute to John Wyer Associates, and their great efforts that continued the domination of Ford at Le Mans and other international races, and for bringing the Gulf Oil Corporation into sponsorship of international racing.
So, concerning "Blasphemous" to cut up a GT, I think that having the orignal champion of the GTX1, namely Kip Ewing, modify a GT to the alternate configuration would be a tribute. And, having Kip doing it (instead of Gennadi) means that it will be done correctly and properly. For those who wish to have the GTX1 configuration, I would maintain that any color would be a great choice, and only depends on the desires of the purchaser.