Unitiserve SSD upgrade from hard drive

Just a quick question, my unitiserve has fallen off my network and can no longer connect. It's a common fault with the network card. Sadly it will have to go back to Naim but I'm not sure if it's worth having it upgraded to an SSD at the same time.

My question is how much would it cost to convert and would that include a new network card ? 

ie would the network card come under the convention cost or would that still be added on top. 

Thanks in advance