Do these carriages export excretion onto the track? Won't charter services in the future require replacement carriages with air conditional and so forth?
I'm only commenting as an observer and some of the things i've read on this forum state the carriage stock needs to meet new standards by 2018-2020 or something like that. Here we are cutting 100's of carriages up.
When these trains go up for sale are all potential buyers aware and are all potential avenues explored about refitting, refurbishing and re-purposing?
I'm assuming the carriages themselves are fit to run on our network since to deliver them to Kingsbury you have videos online showing a GBRF 66 hauling them there.
'Carriages', of the sort that require a locomotive to shift them about, are deeply unpopular. There has been something of a resurgence of late only because some operators are short of anything else. Going forwards, pretty much all current loco-hauled coaching stock will be replaced with dull but favourable multiple units, with a few specialist exceptions such as sleeper services.
As for charter outfits, they prefer well established stock like MK2 and, very probably before too long MK3 coaches, which are well proven in use behind pretty much any sort of loco you like. I've absolutely no idea what would be required to make Class 373 trailers work with conventional locos, but it would certainly cost millions to achieve. They'd need to be gutted and totally reconfigured electrically, maintenance systems would need to be put in place, gauge-clearance acquired for each and every route you wanted to run them on, and whole host of other issues attended to. Probably far easier, and quite possibly cheaper, to acquire MK3s and do the required work to make them suitable. They also have at least some sort of heritage angle, whereas a 373 really doesn't.