The materia quest is off of the blackbrush Tele a lil northeast of blackbrush itself in a lil spit called the bonfire... Quest can be started at lvl19 crafter lvl... Can only meld materia to the gear that's as high as or lower than your current lvl...
As for the personal chocobo its received during the very end of main quest where a free company is chosen... Soon after you will be asked to do fates for free company currency and to pay for your chocobo...
Hope I have helped someone ;)
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