This is a good site as well Wayfinder - the national catalogue of Rights of Way You can download all the recorded tracks for a particular national Grid square SE TK SX etc. and import them onto memorymap. You have to be carefull as it also lists bridleways, footpaths and restricted byways. but it's free.
Ere' for tomoz eve' (which'll probably be soggy!) how about the unfortunately named 'Bentworth'........near Alton? Looks to be a lorra BOATS according to the Hants CC site.
Dunno mate. I change jobs next week and may have a few (nicely paid!) days off in between, buuuuuuut I might take advantage of not needing the Landy for a few days to paint & waxoyl me chassis & rub down & paint me bodywork.