I have a honey ginger blonde on tap now.
7.5 lbs pilsner
1 lb C40
.5 lb honey malt.
That is similar to your grains but I had more crystal. The honey malt does add a bit of sweetness but not too much. I think it adds more sweet aroma than sugar on the palate (if that makes sense). I used 2.5 oz of fresh ginger. The ginger is present but dulled somewhat by the big honey presence. I would suggest either using a lot of ginger or cutting the honey malt down around 3% if you want the ginger to stand out.