hi all need a bit of help i have a CTC dual but i need a bigger build base

do you know if there is a way of fitting a bigger build base on what i have

need to print about 200x200 is it possible or do i sell my dual and buy this one

http://www.ebay.co.uk/itm/221835185251?_trksid=p2060353.m1438.l2649&ssPa…

thanks