I have asked about this in another forum, inhabited by a lot of BAA guys, and they say - ' You are unlikely to find in the UK AIP what aircraft fit on what stands at UK airports, possibly one or two of the smaller airports but complex ones, no. This information is more likely to be in an individual aerodrome's Aerodrome Manual which tends to be a semi-public document. Those that need the information have access, not sure how many would be found on the internet. I see a lot of wasted telephone calls in your immediate future.....