As above local bearing suppliers - sizing is usually the easy bit - material selection and shore rating is not so easy. Only other issue is potentially they will not do one offs for any ordered in sizes.
FTP900 +Sightron S111 10-50 x 55
AA Pro Target in FWB FP70 stock + MTC Mamba lite
Daystate Airwolf + Bushnell Elite 6500
" life is about the memories we hold and not the things that we own"