makes me laugh with these things, that a fairly well written response to more complicated parts to an email gets signed off:
"hope to read back from you soon"
If it was full of spelling errors or the like i would be more understading, but the first thing i thought when reading that was 'scam' just as well i was right - i am even more suspicious after nearly being scammed by a mr brakewell a few years ago
As said i would not accept anything other than cash upfront; my bother in law borrowed a uv light when he sold one of his cars and checked every-note, bit extreme that tho mind!
tho not as extreme as marching them to the bank
Bank transfers can be reversed even after they have cleared - it is another scam method...