ATM I think it is needed.
If you look at there is:
CityLink Mercs - 3 or 4 off the road
Ex X66 Fusions - all off the road being prepared for the X40
Wheyaye50 - Half of it's PVR of 6 are in Chester le Street Broke
Waggonway - One withdrawn due Fire Damage - 4944 now covering for it.
South Cadets - Always have 2 Street Shuttle Mpd's in there place.
Versas - Suffer from Reliability issues - Mainly Saltwell Park ones.
And there is more issues on top of that. I definitely think a few Temp Buses are needed drafted, like what GNE did with the Quaylink. Plus wouldn't cost GNE that much, It's morely cost effective if anything
RE: Go North East