How much did the GT40 roadster 109 g for when last auctioned? Did Mecum sell it?

[HistoryBuff]

I saw this roadster at Dean Jeffries shop-I remember being puzzled why he wanted to put an overhead engine in  it when it wasn't built that way?  I saw a story on  it on the net when it was displayed at a charity function--maybe it's part of Mecum's personal collection. Being one of five I would think it's valuable but with no big racing victories , still worth less than a LeMans winner. I even wonder why a roadster when it raced at LeMans when it rains almost every time?