I estimate it'll take 12 elapsed hours to finish the entire trench with 4 of us working. Good training oppy! I plan to spread it out over 5 to 10 days, probably on weekends. The important part is to get it piped into the buildings on the ends so I can run a temporary cat5 wire and order a preterminated single mode fiber for inside the pipe. The new long-handled trenching shovel was a perfect suggestion!