You can always perform a site-restricted Google search. To restrict it to s2ki just add "site:www.s2ki.com" (without the double quotes) to your keywords.

You're never guaranteed to get responses on any forum site. You're in the correct section.

I don't think that many find it to be worthwhile to replace the roll hoop speakers. The only replacements that I know of are from Modifry but there may be others that fit.