Would be interested in how you get on with them as SGS seem to come in for some stick online. I've got SGS trolley jack, jack stands and tool cabinet(s) and found it all to be solid kit that's very keenly priced.
Their customer service is also very good which is often the measure of a company. On the tool cabinet(s), I ordered one that was damaged in transit so they sent me a replacement within days and let me keep the original one as well. Result!