Yeah, a sub-only graph would be nice, but as it sits now you have a pretty huge (25 dB +) spread between your highest peak (~35 Hz) and your lowest depression (~65 Hz). Probably doesn't sound that good...
Try some different locations for your sub, if that's an option, and see if you can find one that minimizes the peaks and valleys.
You'll certainly need an equalizer to reduce the wide peak between 20Hz-40Hz. Then you'll be able to increase the wholesale gain of the sub to bring up the result to the target line. Then add the mains and see how it looks.
thanks for looking, will reduce peak between 20 & 40 first, not sure how to increase the wholesale gain of sub though, will take it one step at a time reduce peaks then post results and get information on increasing gain if thats ok