I see a few possibilities. Canadian data, right? The information doesn't match any of our existing 10TM definitions, unfortunately. First, change the central meridian to -115. (115W).
Also I would try changing the latitude of origin to zero. I think geographic location just identifies the area of the data, and may not have anything to do with the projection parameters. With the latitude of origin set to the equator, Y values will be around 5-6 million. However, with a -5000000 m false northing, that will reduce the size of the Y values.
Lastly, change the scale factor to 1.0. Scale factor is applied as a multiplier to the numbers coming out of the algorithm, before the false easting and false northing values are added.
Yes it is data from Canada in fact this is what altalis has provided (the official data distributer of the Alberta Government). It looks like I am still missing something here, this is what the projection file looks like now:
Okay, I downloaded the DWG. Ignore everything I said and what the metadata says. Just assign the NAD 1983 10TM AEP Resource prj to the data. A quick way to check it is to add the AltaLIS data to ArcMap. You should get a 'missing coordinate system' message; ignore it. Add some reference data. Set the data frame's coordinate system to the AEP Resource coordinate system. The reference data, as long as it has a coordinate system, will get projected on-the-fly and should line up.
I don't know. I believe the metadata's correct for the CAD software, so someone working with it in that software would need to know that information. Because the data was georeferenced to a 'known' coordinate system, it just works in the GIS software.