I have gauge face overlays for the CB400f, these have been professionally printed using solvent inks and are very close to original. The CB350F may well use a differant speedometer, an earlier type where the trip knob is secured by a tiny screw. The distance between the trip and mileage apertures also differs on this speedometer to that found on the CB400F. The tachometer for the CB350F and the 400f are the same. I think the CB350F speedometer is a 110mph one but as this model was never imported into U.K. I'm not too sure. I do have 110 faces but I'm unsure if they would be OK.
If you PM me (with email address) I can send an image and from that you should be able to see if they would be suitable.