not really. the price of fiberglass and bondo is the same as a trial kit of smoothcast. two trial kits is enough for one suit. and thats using a thick coat of plastic. you can get it done with one trial kit of smoothcast, but it will have a little bit of flex to it.
i have an update. i got my craft robo and finished setting it up. so far ive cut and scored: 2 shoulders, 2 shins, a forearm, a handplate, and a thigh in 2 days. it cuts 3 inches per second! thats 4 times what i can do on straight parts! i highly recommend the craft robo