You do not need a power file (although I am happy to provide some examples), what you do need to do your calculations are the power curves and total weight so you can calculate watts/kg.
The ability of humans produce sustainable power changes over the duration. The highest power is produced for short intervals, with a rapid drop off from 1 sec to 1 min interval, followed by a leveling out over time.
Most online training analyzers will provide this. Strava actually provides these figures to members, and allows you to access power curves of riders you follow that upload power data. You can also download files of athletes you follow (i.e., those who allow you to follow them).
Therefore you will need to:
- Make an account on Strava
- Make friends with some users who have a power meter
- Become a "follower" - it's kind of like joining a cult.
- Download/analyze applicable rides.
To get you started below are a couple power curve examples, one from a commute and another from an actual pro athlete (which would probably not be very indicative of touring efforts).
Example - MAMIL Commute
Here is an example an out-of-shape middle age man in lycra (MAMIL) riding to work:
This was last week, riding a tempo pace but not killing it. I was putting a reasonable effort on the climbs which is why the 20 minute power is around 300 watts, but didn't want to work too hard so the 1 hour power falls off and the short duration power is relatively low.
Example - Pro Athlete
This is a high end example of a pro athlete (triathlete) riding full out for an hour in a cyclo-cross (CX) race, a type of racing known for its intensity:
They are putting in big efforts out of the corners (2000 watts!!!! - #$%!) and are maxed out everywhere else. Here the CP60 (critical power - 60 minutes; also known as Functional Power Threshold [FTP]) is around 370 watts!!! Impressive fitness to say the least.
If you look at 5 minute power, which is a good indicator of potential fitness, the pro athlete is still putting out almost 100 watts more power than the MAMIL commuter example. That is 30% more capability! Granted I wasn't completely maxed out on my commute, but there is no way I could find another 100 watts to match, plus I have more weight which would put me at a lower watts/kg and a further disadvantage.
Both examples are probably outside what someone on a long cycle trip will want to do. I would simply shift the curves down appropriately.