There are some good marder mock ups on there as well. The air defence would make a good build.
the best thing to do here is make the CCV proposals the theme of the next WOTIF for 2010 even if DND choose one it will still be interesting. The possibilities are endless with so many kits out there that could be converted. With the re release of the Leopard 1A5 from Iteleri you could turn Leo C2 into CCVs like the IDF with the old Centurions.