You can use a verification rather than full calibration on any instrument as long as:
It doesn't violate client requirements
It doesn't violate requirements of your accreditation/registration
If it does violate one of these you can then pursue an option of obtaining a waiver from your client...I'm not sure a registrar or ab would issue a waiver...I've actually never come across that scenario before.
Your choice to do this should be based on a risk assessment and cost vs benefit. Don't just say we don't have money for this, be sure you know the financial repercussions if you should have measurement failure on these instruments.
If you are going to "verify" rather than "calibrate" are you going to use a nist traceable reference standard? If so this may be perfectly acceptable by your AB as long as it's based off of an acceptable method. Although if you're under ISO 17025 they'll still want to see a UC budget developed for it.