Sometimes, people are lazy (I know... hard to believe!) and scab photos of the internet, instead of going through the bother of taking new photos. Still could be a scam, but could just be a lazy person. If I was local, I would absolutely try to arrange an in-person inspection of the item. Not sure I'd want to trust somebody on Offer Up or even Marketplace. I would be more comfortable going through Ebay. At least Ebay can get you your money back, if something goes wrong on the sale. If I were local to that unit in FL, it would absolutely be worth a look.
If it doesn't work out for the OP on getting a Tech 2 now, others will come up on the forum or on Ebay.
Otherwise, the clones have been really good from what people have posted. I just got one a few months ago. Works perfect out of the box and has already paid me back the $300 I spent. It is now keeping money in my pocket every time I use it.