CanEV has been in the business of supplying conversion components, doing conversions, and selling EVs for industrial use for many years. They're on Vancouver Island, but they might be supplying a conversion shop that they could refer you to in the lower mainland - you could ask them.
This is not a recommendation for CanEV - I've never dealt with them - but just an idea for an information source.
This is not a recommendation for CanEV - I've never dealt with them - but just an idea for an information source.