f29 can pump out 300watt per channel 2 ohms
if ur subs; 307, are 2 ohms ( sorry i dont know if they r 2 or 4 ohm ) than u r fine with it, they are rated at 400, but 300watts are good enough.
if u r using CV 12.2, 600watts, than 300 is less.
ager app ke pass budget hai, to get a mono amp, thr was this guy who was sellin his boshman 800x2 amp for 12-13K rs, wo 2 CVs ko bhu tha le ga, per budhet per depend kerta hai.