Enter product, and customers to Xcart

I have approx. 1000 customers, and 600 products to enter into xcart. Product allready has pictures, and one level of pricing. We have about 12 levels of group membership pricing that need to be entered. The customers should be an easy import from OSCMAX an oscommerce product. Do not reply if you are not familiar with Xcart. Do not reply if you are not professional enough to state how many days it will take, and actually do it in the amount of days you state. We do not need anymore webmaster excuses as we have heard them all! We do not care if you manually enter data via copy paste, or if you make a script, we just need it done ASAP!! We will only use the escrow service. No more B.S. we will not pay if you cannot meet your stated deadline. So it is best you know what you are doing, and make bid accordingly!