A build with a local mechanic sounds practical. There are Team WIKISPEED members in BC that you may be able to connect with, if you would like to. Send an email to infoawikispeed.com if you'd like to join the team!
Your CNC machine would come in handy for all sorts of things, I'm sure. The car body is structural carbon fiber. This is not my area, but I think that it takes some practice to get it right.
My first kit car will be a re-body of a Nissan sports car (300zx) then I would like to explore the Wikispeed chassis mainly because it gives the freedom of many exterior design applications.
So hopefully in the future I'll join the team to brainstorm on what can be accomplished and for how much.
I was told that a WIKISPEED car has been sold to someone in Canada. I don't have details or timing. Whatever paperwork, or crash testing, or changes are required in order to license it in Canada and drive it on public roads will be done. I'm just not sure when. I'll cross-post your questions to Team WIKISPEED and see if someone can answer them better than I can.
I'd be interested to know if you come across any info. 
I am involved in the Electric Motor Module build. It is far too early to tell for sure, but my feeling is that the purchase-from-WIKISPEED electric version of the motor module will be more expensive than the Civic gas engine motor module. That does not mean that you cannot build an Electric Motor Module for less. Costs could be reduced by sourcing the motor, the controller, the charger or the batteries for less, recycling used parts, etc.
I see
I'm not sure I'm qualified to comment on this one. A hardtop version of the car is in development. I haven't heard of any teams working on a hardtop convertible - but I would not know.
The car has a 5 star crash rating. I think the A pillars and windshield are fine for road legal. There are a number of prototypes on the road in the USA, licensed and insured. There are a few different rules in Canada, so it takes time to meet the requirements.
The suspension is actually quite impressive on the WIKISPEED car.
I think that the windshield is a stock item from a Miata - but I don't know which model or which year.
I just hope it could turn out cheap because for someone like myself whose goal is to have great "looks" above everything else, a dirt cheap clunker with a new roof line might get me there many thousands less which could be the equivalent of some years saved gas.
picture --> i.imgur.com/1c97j.jpg