RWE, when it comes time to do a project, local surveyors and civil engineers will be hired to do precise topological surveys, grading plans, etc. When I an designing a project at a high level, I will do it precisely enough to be within 1/2% on my estimates to the companies which will be paying the bills. Then I hire and work with the architects and engineers to develop the detailed engineering plans.
The sound you hear is my head banging the keyboard.
So, you are doing a 200 acre design project that needs contours that cannot be obtained by LIDAR, but can be obtained using GPS.
In addition this phase of the project will be done with something not considered to be a precise topo (otherwise why get the surveyors later), but it is complex enough for you to program contour generation from point data into a drafting program originally used for machine control?
I'm using synapses I had originally designated for debauchery, just to figure this out.
