I was referring to the Jonckheeres, Premieres, Profiles, Panthers and Elites that were used on the 10/35/305 in the past. Indeed it is illegal to have standees, however it doesn't stop it happening!
The issue with the Interdecks is the I-Shift gearbox rather than the entire coach itself. Plaxton offer the Panorama with the ZF Ecolife much like the Elites currently on the 10 (which are fantastic machines and very reliable), those would be ideal. E400MMCs wouldn't work as the passengers would complain constantly (as they have with the 35), what you need to remember is the Buchan Xpress basically exists because of the lack of train service, hence why it needs high spec vehicles. It also brings in the most revenue at Bluebird, hence how it can afford new vehicles every 5/6 years. In hindsight they should've bought more Elites to the same spec as the ones on the 10 for the 35 and just added a few extra peak short workings to/from Oldmeldrum.
The E200s were quite poor, but they've had work done on them lately and many have been refurbished inside, with the rest being done now.
Luggage capacity isn't an issue on the Buchan Xpress, however comfort is, hence why most passengers would be against any buses. Panoramas are the most ideal option as they're a standard type for the company. Tourismos are good, but again non-standard so very unlikely to be bought.
This is not true however. The E400MMCs on the 35 have been plagued with reliability issues and are loathed by both the passengers and drivers. They're good buses, but not on a route like the 35 regardless of winds.
Also the Buchan Xpress is only the 60/61/63/67/68. The 62 no longer exists, 64/65 are Central Coaches routes and the 66/69 are short local routes.
The issue with the 63 plates here is that they're only 3 speed, so they're pretty hopeless.