You might wanna try something like this Black Swan bow design... Make it a forward handle with no deflex... The form should be very easy to make... With the middle of the form flat it will be easy to fit your riser and you can easily change riser shapes... Just have moderate sweep in your limbs and you could get away with two core laminations... I would stay away from any heavy reflex in the tips... Maybe just a slight reflex... It should have decent performance...