If it was me, I would wait.

I had a 96 Divvy, which was unbelievably powerful compared to the DT125 I took my test on....for about a week. I only kept it for about 7 months, before trading it in for a CB750. Still not the most powerful bike on the road, but a much better all round bike for me. It ended up costing me a good couple of thousand in total to change.

I should have kept the DT for 12 months, practiced my roadcraft, earnt some no claims and then gone for it. I probably wouldn't have bought the Divvy if I had 20/20 hindsight. It wasn't a bad bike, I just wanted more almost straight away.