Hey Laren. Hello, good morning and a very warm
to the net's best for all things Street Triple!
Clearly you've come across Street Triples in the course of your work so you have some familiarity with the brand and the model. It would be ridiculous for me to try to suggest what you need to look out for in terms of the condition of the bike if it's something that you're doing on a regular - perhaps daily - basis in your line of work, so much of what will influence your final decision will, I suspect, come down to personal preference and taste. Nothing wrong with that, indeed, if you plan to live with the bike for a long time it might be a primary choice factor.
So, the 'standard' advice would suggest that, besides mechanical condition, you look for something with low mileage, a good history and, perhaps, some useful "extras". The 2011 R, then!
Yeah, yeah, yeah ..... OK, I'm a "round eyes" fan!
Seriously, whatever or whichever you choose, I'm sure that you're going to enjoy it to the full once lockdown restrictions permit. Oh, and we'll need to see a picture or two when the deal is done!
Good luck with the purchase, stay safe and keep us updated on what - and why? - you decide.