I've swapped aound, added, and removed all the above parts on SX's and Squire VM jazz and P's and it's not that difficult at all.
The bridges will probably be direct bolt on, no addtl. work required. The pickup cover just requires some careful placement and measurement, the control plate, depending on it's shape may need some filing to fit properly against the pickguard, and or you may just be able ot use the original control plate with the addition of any more holes for the new pot arraingemet.
Depending on your DIY skills it's not a hard job at all.
BTW I got to see a CV P bass in a local store finally and I loved it. By the end of summer I may have the whole VM- CV line, I've already got the 2 VM's
