Wake vortex is not an issue in this discussion.. otherwise why do we get so many biz jets flying in and out of Heathrow which fall in the same vortex category as small Cessnas, etc. The real issues would be cost and trying to convince the airport authority of a good enough reason to permit your flight. Contact them and seek their view on available slots - and do let us know the response. From an ATC point of view it would be a total doddle - SVFR in good weather.... radar vectoring to a suitable point close in to the airfield then a quick visual dive in.. Around midday-early afternoon or Saturday evenings we're usually sitting around doing very little and the odd light a/c could easily be accommodated..... but the airport bosses may not agree.