dtp-70 lamp - where?

Hope someone can help with this. Love my DTP-70 but the lamp is already too old and giving occasional errors. However X-Rite does not sell the spare: flat-fee "send for repair" at $635, which of course is crazy, and if you add on top that I'm not in the US, I'd be paying for a lamp change over $1,000. Can someone point me to the brand/model of the replacement lamp I need to buy, and/or a source? thanks, Roberto Michelena Infinitek Lima, Peru