Wanted: Inquiry for AE Governor WOODWARD Exchange Basis

Dear Sir, 

Kindly please advise us cost and availability for the below Inquiry  

For : AE governor with below mentioned Specifications , which is installed on the AEs.
TYPE : WOODWARD UG-A
P/N :  B8521-760
S/N :  14920605

We have spare AE governor with different part no. 8250-774, we intend to offer it for exchange.

You can also offer without exchange basis 

Pictures are attached for your perusal and ready reference .

Awaiting yours,

Best regards,