Thats why a late lvl 39 might be a good point. At the start of the manga/ anime sure he doesn't have all of his signiture moves. BUT He is still in the top of the world class martial artists... He is still damn strong and is supposedly able to take on most top lvl fighters. Highly skilled. By comparison a 20 lock is just one lvl higher than the first twink bracket. No where near any of their core skills and no talented additional skills. Heck they've only just got enough points to fill talents in the first two tiers... dmg buffs or basic additional skills. Not a description of Ranma at the start with his solid basic skill line down pat and just about to blossom.
However, if you want to make him closer to the locks lvl... you could make him about lvl 29 That would work well too.If you think about it he could be compared to a combat rogue. Agile, fast, but all about the sneak and attack (As opposed to assassin or sub spec). There is even a parallel to the chestnut fist at lvl 30; blade flurry - increased attack speed. This would still mean the locks spells would most probably miss from the lvl discrepancy.
As for the new body causing him trouble... I don't believe in this situation it would be. Yes he isn't used to it at all which is why I suggested the ko from not understanding the power he was using. But the lock isn't melee, she wouldn't be dodging she'd be standing behind voidy and throwing spells with a lovely "resist" chain going on. She'd be concentrating on the casting as whatever spec she is she'd be main casting sballs at that lvl. With a 3 sec cast speed. 2.5 at the best destro specced. Ranma would, thrust into a combat situation, just ignore the voidwalker and plant one on her THEN stop to think about what was happening.
Either way Ranma should be able to beat the lvl 20 styled lock. which lvl you choose for him isn't that important as such. Just as long as he beats the lock. I'd find a fic where they enter into a partnership freaking out the rest of the lock community in the process possibly more interesting. Can't wait to see what you come up with to be honest. Love the idea
