Just some comments that may help avoid a scammer ...
1. Seller has low feedback count (not a reason on its own)
2. Feedback is only for the item currently being sold (not a reason on its own)
3. The feedback is from buyers with a very low feedback count (not a reason on its own)
4. The ‘Buy it Now’ price is significantly below that which would be expected for the item being sold (suspicious)
None of the above in isolation indicate anything very suspicious but when considered together it has all the hallmarks of a scammer who has tried to create legitimacy in their auction using fake buyers for two previous sales and associated positive feedback.
I would treat such an auction and associated seller as a scammer until such time as I could verify the legitimacy of the auction and would even contact eBay to discuss the seller. If they have reason to, they can check a sellers details and selling history. If the previous two sales were cancelled for instance, that would be a HUGE red flag !
The detailed auction could be genuine but $999 is a lot of money so some due diligence is needed to avoid disappointment. If you start from a position of disbelief and work towards confirmation of legitimacy, you will be fine
This advice is from a person who actively hunted thermal imaging ‘bargains’ so was regularly sifting through the scammers auctions ... that person was me
Finally.... remember that words in an auction are just the seller trying to convince you to buy.... they can be a total fabrication and you are not to know. If the seller says there is something wrong with their PayPal account so it will need a less safe form of payment.... run away and report to eBay for action to prevent a ‘non paying buyer’ case.
Fraser