If you go eBike kits there are lots of options.
I got my eBike kit from Grin eBikes.ca They are a local ebike parts supplier very close to MakerLabs on Powell/Cordova St. Great support.
Another good place for kits is EBikeBC
If you do decide to go electric I would recommend a bike that has at minimum a front fork shock absorber as you will find bumps and potholes will take their toll at higher speeds.
I’d recommend a battery that can give you at least 40-50km on one charge. At least 10-12Ah. Mine is 16Ah and I can get about 80km on a 100% charge which takes about 4 hours.
Lots of places in Van are selling full ebikes ready to ride for around $2K which is hard to beat.
If you want to give my eBike a test ride let me know.
Your ride from South Van to VHS would be about 25-30 minutes depending on what kit you get.
I popped down to the Fraser River one evening. I was going at a pretty good clip at in a few spots. 55 mins of moving time and 21km. Note that purchased eBikes are speed limited to 31km per hour.