The shared section along the Waterloo spur is owned by the Region of Waterloo. The LRT / Metrolinx crossing near King & Victoria is being grade separated.
Turning radius is the only major issue. 600V is common enough, and a supplier shipping standard and 5' gauge should have no trouble with Toronto in between.
Those jobs in Thunder Bay have previously passed from the original Canadian Car & Foundry through A. V. Roe / Hawker-Siddeley, UTDC, SNC-Lavalin, and the Ontario government, and will no doubt outlast Bombardier as well.