Share 'WTB: ~54 CM cheap CX frame'

My girlfriend would like to give CX a try after watching me do my first season last year. We just finished up building up her first road bike last season, so the cost is keeping her away. I am looking to find a frameset that I can swap most the parts over come fall. If i dont find anything, I might have to resort to the dreaded nashbar POS. Something old and beat would be perfect. Her road bike i…