It is not only cost in question.It is also the time to convert them to Blessings at Martial Arts Master.Through lvl 149 (to reach 150) you need 2 000 000 000 XP,which is 10 000 FC mats. To convert them to Blessings youwill need hours.Through lvl 148 (to reach 149) is another 5000 FC mats, and 2500more through lvl 147.2 days ago I converted about 1000 mats into 5000 Blessings, tookme about an hour. So, 17 500 mats would take nearly 15 hours.Long time to convert, plus all together is about 9 bill coin. (8.75)Or more, if you don't find FC mats for 500k each.(Some even try to sell for 1 mill. You won't buy from them.)Add time to farm 3-4k EC or nearly 9 bill coins,and to find people who will sell FC mats.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Much cheaper and maybe faster thing to do is:At least do some PV's and FC's while at lvl 147,it's faster than you think, especially if you are seeker.Psy, BM, Sin, Wiz, Barb... are not slower, or not much.If your seeker farms FC mats for your, say, Cleric,it is 175 FC runs. Much faster would be to take Clericinto dual client to follow seeker through FC. Add matsconversion on top of that. You will need 33 runs throughlevel 149 only, but get coins from the runs to buy moreFC mats if you want.If you do for your seeker, run solo. Just need FC opener(your Cleric to buff you, or better Sage Sin for Sage BP.)At lvl 149 one solo FC run gives about 5.4%, and set ofmats from one run gives additional 1.2%. To lvl is 16 runs.Plus, you can sell yellow mats to buy few more purple ones... LOLAt level 148 is 8 runs, and at lvl 147 is 4 runs.PV run gives half of that, but you do it about 2-3 times faster.And there are days when you can easily find squads for GV.