Hi Air - Fill thy purse with money
A glance at history doesn't bode well for this type of venture. Even in good economic times this sort of niche, low capacity service has usually foundered. Unless they are prepared to ride the inevitable early losses it is unlikely to last six weeks. Upmarket niche services can only exist where there is an upmarket demand, which in the UK means London, not Doncaster.
Doubtful what value will be seen in personal service on a less than one hour sector. Suckling sustained it for several years in the 1980s but that was from Ipswich/Cambridge - the wealthy south-east, and in a boom economy. The higher frequency, lower fares, interlining etc offering by KLM from several airports not far away will be more attractive to the majority of business travellers.