I think I've been an impatient idiot, and bought SUZUKI TL1000 WIDOWMAKER V TWIN THROTTLE BODIES MIKUNI they are clearly described as TL1000, so I bought them, but, on more scrutiny I think they are SV650, can anyone confirm?

I spoke to the seller who recons the picture is correct, and they are TL, but asked me for a pic of what I thought they should look like, sent him the info, he's not replied but marked them dispatched now, more money down the gurgler

Can't help with the TB's but if they aren't exactly as described you'll get your money back and return postage no problems.

Comparing images with some sv650 bodies on the bay they look different to me..

Yes, they look like SV throttle bodies to me, the TL1000 did not have the secondary throttles and the brackets that join the two TB's together are quite different.