I have a Marcato Atlas machine that's chrome over steel as well. It's had well over two decades of service (once every other month or so), and still looks like the day it was bought. So, don't let the construction bother you.
That set you linked looks okay and Imperia has a good reputation. I don't think I'd ever use the ravioli attachment. For ravioli, the trays are just too easy. Large Ravioli Mold
Before investing in any machine, you might want to try making some by hand just to see if you like it. Pick a recipe (here's an easy one, 5 eggs, 1 pound of flour...that's it!). Roll the dough out, get it nice and thin, flour it well, top and bottom, roll it up, then slice it from the end...very easy to make fettucini or tagliatelle that way.