Can't you just double the pixel size to 426 x 640 or to whatever you want in almost any photo editing software ? It really doesn't matter what they were taken on to resize them.

It might have helped if the actual lamppost had been included if it was possible.

You'd think so, wouldn't you?

Never thought I'd read you saying that!

Guess that's the problem trying to sell a lens in Nowhere Land to the UK!?

Maybe simply because you didn't say hello yourself and jumped straight in with a for sale item ! People tend to get suspicious these days.Sad but true.
I take it you had no takers for it on the other forums you frequent?

Bear in mind it is presently illegal to travel outside of one's local area. Gong to view/collect a lens wouldn't be considered an acceptable excuse at the moment, not with standing the potential dangers of doing so from a complete stranger.
I bet you wouldn't post the lens out on approval to a complete stranger either!
Why not list it on eBay as they provide some level of protection for buyers and sellers? You could link to your listing from here, perhaps with an option for anyone local to you to buy and collect it privately through this site. But first people would still need to know your approx location.

Maybe try and track down a new camera body if your lenses are OK?

Can't say what your problem is but the camera looks to be suffering badly from dust on the sensor suggesting the camera has been left without a lens or body cap in situ. It would seem to require a good overhaul.

I wouldn't think it is a memory card fault, more likely the shutter getting stuck half way. Perhaps someone else has experienced the issue and resolved it. Sand or grit getting blown in might cause a sticky shutter, if it is that.