It's doable, but unless you can find plenty of hours between now and then to practice you're going to be at a severe disadvantage; not just in terms of the multiple choice questions (many of which you probably won't know straight off the bat) but also with regard to the way in which the hazard perception examples are structured. Personally, I'd go for the later date, particularly if you're going to be working between Monday and Thursday. As an aside, I was getting near perfect scores when practicing hazard avoidance questions online (see https://www.dvsalearningzone.co.uk/shop/motorcyclists) but nearly came unstuck on the test itself. To be clear about this, the practice software lets you click about 8 times in succession without failing the exercise example; in the test itself, 5 clicks seemed to be the limit - I lost all points on three questions before I realised what was going on!