I'm a bit dim when it comes to modern bike bearings so bear with me...
I'm building a beater which came with semi-integrated headset cups pressed into the headtube.
Ritchey bearings in good condition were pressed into the cups both sized at Ø41 x 30.2 (45deg)
I have a crown race on an old pair of forks that seems to fit fine so I'll hopefully be able to remove it
I'm short of a compression ring and top cover to work with Ø41 x 30.2 (45deg) bearings and a 1.125" straight steerer fork - anyone got anything lying around to save me having to remove the cups and start again with a new headset