HESITANT with NEW member sellers

As a fairly new member of Agon. I can understand your trepidation.
Agon is not responsible for your transactions. You have to exert due dillegence.
I think you have done well by steering away from purchasing  equipment from sellers with no prior rating/feedback.
Though I have to say, all of the sellers on Agon, that I have bought from, have been most accommodating and forthright and have allowed me to demo the equipment before buying. That was something I was really surprised by- allowing a perfect stranger to come into your home to listen to your equipment.
So, if you see something that catches your eye, but the seller won't be flexible, then politely decline the offer and wait for the next seller. I can promise you, you won't be sorry.

The same stuff happens on the high end watch forums. So, if there is a high priced, well desired item; scammers will always be near.
OP- all the advice you have received is good. Use your best judgement, and remember that item will always be sold again.
Bob

Ferrox, wire transfer is probably provides the least ability to recover your money, should the deal go bad.
Paypal, generally sides with the buyer. Though they usually ask you to work out any differences with the seller/buyer directly, before entering into the fray.
As for CC companies, some are better than others. If yours doesn't want to help, then cancel the card and go to another bank.