This is all I could find on it, but it would answer some of your queries:
Church Hill Fishery, Mursley
DESCRIPTION
Three purpose dug Trout lakes of 2.5, 5 and 7.5 acres with natural and ornamental wildfowl, set in pasture land sometimes with sheep grazing. Depths between 11 and 20 feet.
Lodge with catering available for groups of 10 - 30 by prior arrangement.
FISH
Rainbows, Browns and Triploids stocked weekly or twice weekly. Fishery records: 17lb 7oz Rainbow, 10lb 4oz Brown.
FLY INFORMATION
Natural flies: Buzzers, Hawthorn, Mayfly, Damsels, Daddies, Sedges, Corixa and Shrimp. Recommend: Buzzers, Mayfly, Damsel, Daddies, Invicta and Montanas.
DAY TICKETS
Half Day Tickets £22 (2 Fish - 5 Hours). Full Day Tickets £32 (4 Fish).
CONTACT
Mr & Mrs Whaley 01296 720524
SEASON
Sunday of 2nd weekend in March - 30th November
http://www.go-fish.co.uk/venue_1488.htm