I have much of the same. 8 left from 4, 5 and 6. Of the list you have left...I've beaten(and Mastered) with my 30-40ish team...South Figaro Cave, Solitary Island, Mobliz(good to do when you have little stamina as it only costs 16(if you have 3 or 4 shards too to reset em)...bring bio), Figaro Castle 2.
So I'd do those 4 first as if I can do it...so can you. I'd attempt FFV last...people say that's the hardest. Kolts and Imperial Camp are crap unless you have some great armor. Pretty damn tough to even get in the mix in all those to even cast sleep or whatever spells on the enemies as there is 3 enemies in each final fight for both.