[OSGeo Africa] South Africa Cadastral Data

[Grant Slater]

OSGeo Africa,

I want to create an online map of cadastral data overlayed on CD:NGI
Aerial imagery, like my http://aerial.openstreetmap.org.za/ site.
Basically an open source clone of: http://tinyurl.com/nnp56eo
[National Cadastral Spatial - csgmapguide.ruraldevelopment.gov.za ]

Does anyone know...

1) Are the South Africa Cadastral polygons freely available? How do I
get a copy? (aka shapefile, gml or similar)
2) Does the Chief Surveyor General (CSG) impose any usage restrictions
or redistribution restrictions?
3) Are the underlying scanned sheets available? Fee? Collected from
CSG office on harddrive?
4) Anything else I should know?

PS: Happy to receive other African cadastral data ;-)

Regards
 Grant
 OpenStreetMap South Africa mapper & sysadmin team member.