dam 700 is pretty cheap !!.
if it were me, id find out what the domes are like (specs/ if they will work for you and the gas you wanna run) and id replace the pistons for forged units.
the serval kit is way more, but will work out less in time.
theyve been doing the athena kits for years, youd think theyd have them reliable/worth while by now.
i wouldnt buy it tho.
hit up brandon from wildcard, im not sure if he does athena, he probably does, he does everything else !!
800$ for the above serval kit is pretty good too, i paid more than that for just the cylinders.