Hello Cari,
I too recently purchased a Brother Riviera 1781 as well, it works quite nicely! Super cute machine too. Mine is missing parts such as the extension plate and the two orange round lever knobs on the upper portion of the front of the machine, the carrying case the manuals, and a couple other small parts too. Soooo... I was wondering, since you stated that you had one "not because I really want it", then maybe, just maybe, you might be willing to sell me some of the parts I'm missing from mine. I know its a long shot to ask, but I'm sure hoping its accepted.
Thanks so much,
Joyce