just train hard and maintain a high level of fitness then u will be sparring in no time
every one is different depending on skill set an determination took me about 2 maybe 2 an ahalf months if what you say about yourself is true it wont be long personally i wouldn't ask your coach when you can spar he will notice when your ready
If ur coach thinks its ready than u are... 2 month is long while though... Talk to ur coach and see if u can get a fight goin
Once your trainer thinks you're ready. Shouldn't be much longer now.
got decent technique on me and im in shape i go 3 times a week