I've had an msn-chat with EXTspotter just after i posten my first post, i didnt even have the time to edit it enough
I think what would be cool if someone (perhaps Pikkas AV8-sprites as a base?) made grayscale sprites, and thoose were "public available" for "everyone". Then "everyone" could edit them with proper liveries from whatever airline they wish, upload them to some site (for example my server, when i reinstall windows and the proper software), and it would (most likely) be almost scriptable (read; almost, it's not, but almost) to add another livery to the refit menu.
As well as liveries with winglets could get a purchase cost penalty, but a running cost bonus, vs a non-winglet-model.
More ideas from my point of view. I'm not sure if it's possible (MB? Dalestan?), but some kind of "max range" would be nice. My thoughs initially are that after a certain ammount of days/tics would a certain plane either have it's running costs skyrocket, or probably a more "gentle" version could be it would have it's max speed lowered to for example 1/4th of it's max speed. To get technical, this via CallBack36 in combination with VarAction2Vehicles variable 97 or C9, if thoose are possible to reset at some point (for example when speed is 0 (i.e. it's un/loading) or more then 0, but less then for example 200 (or whatever the taxi-speed is), it's sort of reset, and basicly at liftoff it's starting to count, and when at, lets say, 1000, it is looking for a sprite with a CB36 with lowered speed, or similar.
Doable, or do i need to ask the ottd-devs for this?
