Ha ha ha! I had to put the kibosh on buying more machines, also, but today guess what I found? The exact same machine you're talking about! Pink and purple and weighs a ton! It was totally seized up, but after oiling, really sews well. Mine does not have a manual, but it's got a little pamphlet for product registration- this says Printed in Japan, so maybe the machine was also made in Japan? I think I threaded it right- does yours have a threading diagram?
It sews really nicely; I think it will be great for free motion quilting. I really want to take the motor off and treadle it; it looks like it might be possible.
I already have 25 other vintage machines, so I really don't need this one, but the colors are really bright and groovy.