Ah yes! Junior Burchinal from Paris, Texas. This was a favoured training regime for new and cautious Warbird owners in North America then.
$1,800 may not sound like a lot of money but to get it in to perspective, in that year, 1970, I transacted a two seat fully airworthy Spitfire in the UK on behalf of Don Plumb in Canada and paid £12,500. Five years earlier, pre the BoB film, they had been half that.
Mark