Would recommend giving it to Caterham to do for you....
I'm waiting to get mine back from CCM, really don't know how they have so much patience as it's been mistake after mistake on behalf of the sva/dvla departments involved!
Send the first sva application form off asap, it generates a second that they are supposed to send to you...any longer than 2 weeks for the form to land through your door and i'd recommend ringing to ask why! (have the number and the name of the person to speak to if you need it)
Only say this as it appears that it's important for you to accurately fill in all the details but not for them to accurately read them! - Wrong address slowed the process down by 3 whole weeks...