IDEA 1
Right its a milage accumulation exercise where you pick a loco and see what distance you can cover in say a month. No Units and shunting doesn't count just mainline turns.
Id say they best things to go with would be DRS 66s as most rack up milage quite quick
IDEA 2
Guess the route/section of track
3 clues, 1 extra if lasts over a week, 1 criptic if possible
Heres the first
1, Avoids 6 miles but not longer than 1
2, No stations
3, Runs from the southern end of recreation to a ton reversing lad at a junction
will be easy once you see the criptic