Question about buying Carter BBD for my 318 (unless I should look at something else)

The car is not currently insured, and all the time it's beein in storage it hasn't been insured. Right now I have it at home, I drove it maybe 2 or 3 miles from where it's stored to home without insurance to work on it a little, I intend to drive it back to storage again the same way. Last year I did put insurance on it to drive, absolute bare minimum insurance, just what is legally required, no collision, just to drive it all of 10 or 15 miles total. Insurance companies here in Ontario don't offer plans for minimally-driven pleasure cars (other than Hagerty). My insurance cost (for the year) was roughly $600. But since I only had it insured for about a month, I only ended up paying $100. $100 for 15 miles of driving. Now maybe you see why I think insurance is a crock.

I was on Haggerty's website last year, I put in the details of the car, valued it at $5k, selected the lowest cost options, I think it came to $250 for a year, they don't seem to offer coverage for part of the year (like say May to October). I did that for curiosity, I didn't take them up on it. I have front suspension work to do, I recently bought a front stub frame in excellent shape that came from southern US that I may put on the car next year, so taking out insurance on it for driving in the forseeable future is not in the cards, but when it is I will look at Haggerty again.

Earlier this year I tried to insure a 2001 Chrysler 300m with them, filled out everything online, send photo's, driver's licenses, etc, and in the end they declined even through their website gave me a quote and everything. Of course I wasn't valuing the 300m at $20k, maybe that's the problem.

Regarding the carb, I was just wondering what my options were for aftermarket "ebay" carbs in the $100 range that would be bolt-on that would be superior to the "old-style" BBD, and specifically the "new style" BBD with lots of ports (and looks like built-in throttle return spring). I haven't heard a lot here so far about comparing the two, and by the sounds of it I don't think I'm going to.