Advice - Trading 116520 for a 116610LN

[Chuck]

Unlike all the avid collectors on here, I only have 1 watch - a white faced 116520 that I have purchased from an AD and worn for around 9 years. I've been thinking about selling it and buying the current iteration of my favourite watch - the Submariner.

- Can anyone recommend the simplest and easiest way to sell the watch?

- Would it be easier to service / polish the watch at RSC before selling (the watch has never been serviced or polished )?

- Is it really difficult to buy a Submariner-C from an AD nowadays? Seems like they were everywhere w/ discount when I was looking (but that was many years ago).

Any comments or advice is appreciated. Thanks~