Suppose you are going on a trip back to 1300 Western Europe. You can take supplies with you and a contingent of people to help run things.
You can only travel once and your goal is to stay for the rest of your lives.
- You may bring some high technology items like solar panels, but only a few.
- You may bring some consumables (ammunition, gas) but in limited quantities and with the understanding that you are likely to run out at some point.
- You are limited to roughly 20 people you can bring back, but assume you are able to impress upon locals as you arrive and so you will have a source of labor for construction.
- Assume that high-ticket/high-tech items will detract from your total amount of goods taken back by a large amount (i.e. everything has a cost, and the more advanced good you bring back, the less of everything you can take).
- E.g., taking back a laptop filled with information, schematics, calendars, historical events -- along with solar panels or generators to keep it running -- will cost a lot and mean you can only bring back a few other items/materials.
- This goes for people brought back as well. Scientists, linguists, engineers all come with 'cost'.
- Do not forget you are mortal.
- You'll likely need some good linguists because the locals aren't likely to understand you.
- You will meet stiff opposition from everyone, as you'll be seen as some sort of tyrannical mage/warlock. Assume you will have to defend your position continually. Crusades will be launched against you.
- You can choose a general area to land, but the exact location will be random (up to a hundred miles away).
I am hesitant to define how much you can bring back, but let's say you have up to an acre of raw space to transport back for everything (materials, people, etc).