If it was the same shop that told you that they weren't stocking Kona Jakes because of "shifting issues" that also has that Brodie... go find another shop- they are trying to sell you what they have and not necessarily what you need.

Another thing (which I'm sure others will chime in on): if you are wanting/planning on putting a child carrier up front, CX geometry may not be the ideal for that application. Touring geometry might be better suited, but I've never attempted to use a child carrier on the bike (front or rear).