if you use 12m tubes for higher wind you could go 19m or 15m.
if you are looking super low wind go 19m but if you want around 12knots go 15m
the 19m is good for just under 10 knots but that is pretty boring kiting.
I have a 19m
a good combo would be either a 15m or a 19m with a fish surfboard and or a door board or skim board.
it depends what you are looking to do. ultra light wind go 19m, a bit more wind go 15m.
nice kite but remember the 19m is huge and landing the pig can be a pain in the butt especcially if you ride around non foil guys.
catching the wind tips to land it can piss the tube guys off.
I kite with close friends so they have no choice or I freak on them
I would say the 15m deluxe and a good light wind board like the litewave wing, or a good fish surfboard or a skimboard for pretty dang low wind and fun.
the 19m turns like a big wet pig but the 15m turns pretty nicely for its size
you are approx the same size as me.
hope his helps