Good Resource for Parts for Juki LS-341N?

[CBaker]

Hi - I have a Juki LS-341N and would like to buy a few parts.  I have the engineering and parts manuals so i know the Juki part #s but I am having trouble finding a reliable source to buy those parts as my machine is not listed when I try to find comparability. 

Any recommended websites where I can buy replacement parts?  The Juki website has links to view/search/buy inventory but they require a login and I don't see a way to get one. 

Is there a current machine model (Juki or other brand) that uses the same parts so they would be interchangeable with my LS-341N?

Thanks for the help.