So this definitely got shelved for a while!
I will upload it as soon as I can and create another Google Map for it. The mapping is complete from Wiscasset to Pittsfield and from Weeks Mills to Farmington. I had to make a few tweaks here and there to correct for obvious errors in the surveys, most of which were probably made when the plans were being copied into the record books.
There are a few places where the map was clearly drawn freehand (Waterville from the Kennebec River to Western Avenue, and through the village in Oakland) the scale, station marks (cumulative distance notations), and landmarks are incredibly far off.
As for current property ownership, that wouldn't be too difficult at all, especially for the original ROW (Wiscasset - Albion, Winslow). All of the towns involved have their tax maps digitized. The difficulty would lie in connecting the lot to the current owner but the map, without further analysis and processing, would at the very least show the local Map/Block/Lot numbers for the parcels the ROW passes through.
For historical property ownership I have partial records that detail the land takings that list:
Property Owner
Description of the land taken which includes the distance along the center line, acres, and ROW width.
Damage amounts
The ROW maps show the abutting land owners that the ROW passed through, my information on this is incomplete (I just wasn't collecting it at the time but it is out there.)