I'm surprised you even tripped out about a 2 day ban. Being someone who sells Vps's/proxies & gold you should be well aware of the risk you take when you bot. No matter what your leveling, where your leveling it ,how long you level it or how old the account is. Your always risking a 2 day ban or worse.
What i would do is try and appeal that ban and see if you can bot to 99 if you get it off ( Or just level legit... the account sounds pretty established ) . I waited a year for my mains 2 day botting ban to expire and now i'm gonna run for a slayer script on it 3-6 hours a day and see if i cant get it's cb stats up to where i can run a decent barrows bot on it. Possibly killing abyssal demon's if i can get it's slayer high enough
On a side note i was farming iron in varrok when i got my 2 day ban cycling like 8 hours of lobby farming and like 6 hours iron farming. I was just trying to get my stats up not even gold farming ( this was before i realized its IRL $ potential ) but i definitely gotten a perm. Just more evidence of jagex's inconsistency