Sounds good -
That will be the fun of this F-14 class also -
Being able to use existing larger sails , or hulls or masts -parts etc ,and experiment a little .
The existing comparison non board type of cat design would be the H-14 ,-but that uses asymetrical hulls {flat on the outside} -Mysteres and N use a molded in skeg ,rather than board , which makes sence w spin where you need some partial board down ,-its also simple and economical .
The similar type non board is SC 15 {have one}

It has no boards on sym hulls and good sized rudders.
It does not track to windward like a boarded boat so boards forward as you noted would help ,-but the CE and mast location is forward on the SC ,-for good reasons ,-
I sail the 15 w jib , it balances well .
Your addition of large jib would enable the aft mast location but in higher wind being reliant on rudders only will place it at a disadvantage with board boats tracking much higher to windward , downwind the Mystere type design with larger spin may have the advantage , the key will be for multiple jib + headsail hooter type configuration sail plans to be as effecient downwind as a spin ,and have the option of carrying it upwind to increase sail area for lighter wind conditions . Developing more versitile rigs and means of balancing out those sail combinations in this 300 sq ft max rule outline .
The main problem as compared to larger cats in the 14s is getting enough volume in the hulls to carry boat and crew weight plus sail forces , particularly towards the bows downwind to prevent a pitchpole prone type design .
A few design options -
aft mast design
larger volume hull and bow design
The other option not yet noted is lift ,-2 types
lift from hull shape and boards or molded in skegs or fins
lift from sails .
along this line -
I,m tempted to modify the SC by adding adjustable stays that allow more extreme mast rake -{same effect}as aft location, but is adjustable during sailing from upwind to downwind mode.
--A better type of rig could be designed with this adjustable for and aft rake than current type, but that is the next development once the basics were proven .
Similarly to your forward boards ,Im thinking a forward angled molded in fin or skeg to help lift the bows.
-The forward placement allows a longer spin pole and more luff angle that creates more lift from the spin .
Forward angled fins and spin lift combined with adjustable rig .
The rig and sail plan for cat design really needs to be improved , It is still an adaptation of conventional monohull design ,-some innovative and interesting ideas should be encouraged .