Hi, I am looking for an experienced technician in Toronto, who can fully overhaul a machine I am thinking of buying. This includes new head(s), channels, thorough flush, etc. This is an Epson 4800 that has been converted...but has been sitting around for a few months, so the ink does not come out properly. Would also appreciate some basic training in troubleshooting it. There is a manual, but I'm not sure how useful it really is. Thanks all!