I compared the shift cables and used the shorter one on the front derailleur. I cut about an inch and a half from the housing at the chainstay to the derailleur, and cut an inch from the housing from the ergo to the frame cable stop. It is long enough now.

It just seemed odd that the cable would be too short using the delivered housing lengths on a small frame. I measured the rear cable and it was 200cm just as the directions indicated.

All OK now. I just need to get the initial tension on the cables and then do the fine tuning.

Thanks for the replies and suggestions.