If you use the &Connector& to link to CRM you are restricted to only being able to Quote to a Prospect in GBP... The system should support the standard functionality of setting the currency against the Quote not being restricted to a default currency.
Sage CRM connector has been retired, connection between Sage 200 Professional or Sage 200 Standard with Sage CRM is still possible via ISV connector. Closing the idea as this will not be implemented.