Thanks, hadn't realised you could short cut through from Stratford road into beards lane. Some fresh air sounds like a good idea.
Make sure your daughter doesn't get squished on the Level Crossing (though hundreds of children use it every day).
Seriously, though, avoid Cainscross Road
. I've taken 30 mins by car to get along it on 11+ day. There is a large free public car park behind the Fortune Chip Shop at Cainscross if you're coming from the west or south. North would be either Stratford Park or Tesco car parks (never seen clampers at the latter). From the east I'd suggest the large council car park to the south of the station. All are about 10 mins walk away from the schools. Leave plenty of time - arrive early - you don't want your child being flustered because they've had to run to get to the school on time.