I am new to bus conversions and the whole bus living but i am now obscessed with these buses.... and i want to buy one and design it yet have someone who really knows what they are doing, put that design to life....before i get ahead of myself , what is the best bus engine and bus to look for .... I keep getting told by a few that the blue bird bus is great... is this just a matter of opinion or are they just solid and long lasting?