Newbie advice

[Yodel]

Hi guys,

New to the forum and Rolex in general. Have a dilemma I wondered if you could help me with. My local AD called today to say he has a BLNR in stock for me - great news! However, I bought the black gmt 2 a few months back thinking that BLNR would be a huge wait.

So my question is two fold:

- should I pull the trigger on BLNR?
- how much do you think I would comfortably expect to get for my December 2017 in mint condition gmt 2 Black (full set). Ideally I’d like a fast ish sale because owning both watches is not an option.

Thanks in advance!

Yodel