Digital photos might do the trick. In extreme cases you can stitch them digitally.

Potential problems are
Glare - Use polarized filters ( May not need them in most cases )
Uneven lighting - Use reflectors ( A simple white paper or cloth will do the trick. You can correct them digitally as well.
Camera shake - Use camera timer
Distortion - Use some background ( paper or a drawing board ) and draw a square on it, place the map, include square in the photo and use it to correct the distortion..
Color shift - Use gray card and color correct...
Use lowest ISO if possible.

1) Get the best personnel with the right attitude. This is the most important ingradient. Keep them motivated.
2) Set the culture you need among the team.
3) Plan, plan and plan.
4) Define the process and monitor the process.
5) Measure the key parameters ( bugs, timely delivery, process errors... )
6) Be result oriented. Process is not important as the result. If a process does not suit you, change it.
7) Communicate bad news in time to the client. Good news can wait... bad news-earlier the better.