gutted, don't know if its worth the bother then
and whilst your there you may as well fit some PTFE gaskets to keep temps down... http://www.cliosport.net/forum/showthread.php?t=262717
get some heatproof from Halfords indeed... I use some black stuff from motabits which gives a really nice dark grey type finish. If you want black you could also use bbq paint from B&Q I suppose.