Has anyone on here ridden (mtb) any of the 7 stains in scotland?

i've only just heard about them but i want to do all 7 in 7 days. if you did ride any..which one(s)? do you know of any holiday type companys that do a 'package' deal? its hard for me to get up and aroond scotland as i don't drive and i'm good at mtb riding but effing useless at organising!!! thanks