As long as keep casualties to a minimum, I think you'll do just fine for the rest of the game.
This topic of yours inspired me to play some Shining Force III Scenario 3: Bulzome Rising over the last few days, nice. It's a New Game+ file that I'm using and my main character is now ridiculously overpowered, by Shining Force standards. Off the top of my head, the stats for him are:
Level 1
(The main character is able to restart his innovator class and get the stat bonus again, and is able to relevel all over again, after a certain battle.)
HP: 291
MP: 125
Attack: 206
Defense: 165
Agility: 86
Move: 6
Luck: 5
Spells: Egress LV 1, Spark LV 4, Inferno LV 2
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Warning, the self-destruct system has been activated, all personnel should evacuate immediately, 5 minutes to detonation.