Rubber Gaskets on Inlet Manifold

2003 Freelander TD4 Serengeti Automatic.
I fitted an EGR Blanking Kit but didn"t have time to clean the Inlet Manifold so now I am going to remove the Inlet Manifold and clean it.
My question is: Will I have to replace the Rubber Gaskets with new ones when I refit it?
If so, where is the best place to buy them and what exactly do I ask for? Does anyone have the Parts number?
Any help or advice please.

No need to replace them, just take them off before cleaning. Put a bit of silicone grease on them before sticking them back on.
Mike

+1 on what Mike said. I've had no problems reusing mine.

Thanks for that guys. Will probably start removing and cleaning it sometime later this week.
Cheers

Safe to use the ones already fitted wipe them clean and refit, if you decide you would like to add new ones here is a link for them below.
I/we change these regular for the R40 members along with a clean EGR or bypass EGR which ever the member chooses, don't forget to remove the MAP sensor from the manifold before cleaning it out, the MAP sensor car be wiped clean with some carb cleaner.

http://www.ebay.co.uk/itm/121855198092?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT