It is unfortunate that these coaches have gone to Rails rather than Accurascale. I have no idea how Rails will deliver these (I had mine going to my trunk with Hattons) or how much postage will cost.
It depends on how accurate a model you want. The MH Coachworks body was similar to the MCW as you can see if you compare this photo of the model with the actual bus.
The bus you refer to at 0:52 is a Belfast Daimler Fleetline. EFE did make a model but used their MCW body casting whereas Belfast Fleetline's had local MH Coachworks bodies.