Why not just buy a 125 and practice on it? Your test result kinda pointed out that you need road riding experience and experience is invaluable in keeping you alive, especially after passing your test when you'll no longer be getting any supervision. What's the hurry anyway? Spend some time learning to RIDE, not just to get through your test otherwise the licence you may acquire will be little more than a pink voucher for half a day at the undertakers...