Your JP Funster is pretty heavy, but it does have the width.
You are pretty light in weight @ 65 Kg.(143.3 lbs) so if the wind gets up in
the 9-10 knot range there is a possibility your could get planing on an 8.5-9.5 m2
free race sail with good low end power.
A formula board would get you planing, but a wide board that's not so dedicated
to upwind/downwind racing would be better.
Probably the Ultrasonic or a used F Type would give you the best all around chance
to get planing with a slightly smaller (than formula size 10-11 m2) sail.
What you need most is a much larger (than 5.5 m2) rig!