The Accels are a downgrade from Motorcraft longevity wise but if they are all working just leave them. If they are older you can rebuild them for $30.
Just pull the boot off, pull the spring out, new spring pops in, new boot slides on, put a dab of dielectric grease in the tip and G2G. Rebuilt 120k original mile COPs in my Expy and still going strong.
Another good trick is to go to a JY and find a low mileage Vic/Marquis/Towncar and just yank the OEM COPs and get them cheap. Hell, I paid $575 delivered for a whole replacement motor in May. It has 39k miles and came with the original COPs which would be $350 new lol. So I now have a bunch of spares for my Stang and Expy.