Ellebookgirl

Hi!
been reading various posts for a while, longing for a hand crank. I've seen posts with steps to convert, not sure of my skills. I have found one already converted on ebay, they show the needle moving but no fabric or example.
Question: it seems very loud, is that normal or sign of a not great conversion?
Also, is this type of machine still have parts for maintence, use, repair, or have i missed my window?

Thanks for any help!