I think you can probably walk on Fitz grass, its hardly a stuffy town college...
and ignore pretty much everything History_Boys said -the bit about him applying could well be true but the rest is nonsense. Fitz is not an old college and as such doesn't even have any of the 'problems' or elitism, etc, one might associate with the town colleges. Yes Homerton is newer, but Fitz only became a college in the 1960's so its not really relevant here. Homerton is also considerably further from town than Fitz and from the people I know at Homerton seems quite insular (although apparently they spend some time socialising with the nearby 6th form)
OP - don't worry so much about the personal statement, the tutors will recognise that their course is somewhat unique and as such will expect most personal statements to be geared towards other courses.