Steering Pinion Valve Oil Seals

[mrfirepro 127 1 Cars]

Having stripped the steering rack and pinion valve, I note there are a couple of oil seals, does anyone have any ideas as to where these could be found?

 

Thx

 

This is the pinion valve

 

http://s1238.photobucket.com/user/mrfirepro/media/205%20projects/P1020152_666x500.jpg.html