718 Crafts/695 Control

[aerolol]

You can pretty much totally avoid grade IV materia if you want.

Use lv60HQ crafted gear (item level 150 iirc), all you need is to meld 1 Craftmanship III materia and 1 Craftmanship 1 materia (for head/hands/legs/feet) to meet the craftmanship cap for melds (it's only +8).
CP IV materia if you want.
Body you can put one or two Craftmanship IV.

If you have the old ilv55 HQ accessories melded to max (not hard, Craftmanship II/Control II materia is enough to reach the cap), you should have the minimum craftmanship for 60**.
To get the min control needed, eat that new food that gives a lot of control and a few extra CP. (Clam Chowder, preferably HQ)

I did not meld any main or off hand and I can craft 60** stuff.