Need some old Head bearings, only roller versions.

Hello I need some old head bearings from the MC22 so I can experiment with RS250 heads before making a purchase on a new set of bearings. I need Roller bearings and I only need the outer race which sits in the frame, ball bearings will not do. Whether they are old or not won't matter.

I would prefer them to be free as they would be thrown out anyway although if you have to charge me, just post how much.

I will pay for postage.