Ask HN: How to Build Your Own (Mini) Google Street View?

Hey all, I'm pro-bono consulting with a small European economic area and found myself thinking: "There must be someone on HN who has solved this problem."

Question: With a small budget but ample manpower how would you build a small scale Google Street View to take a snapshot of the road system and infrastructure in an area?

It seems that quotes we're receiving for GPS tagged location data (500k+) are outrageous compared to the cost of buying a camera (~20-30k) and mounting it on a truck to survey the area... then building a small dashboard to have locals tag the data.

In total there are ~300km of roads to survey.

Anyone familiar with this?

Any open source tools for managing this sort of data?

Is it crazy to think we could pull this off for a fraction of the cost?