Looks amazing..... that’s what I’m aiming for regularly. Just not as fortunate down ‘sooth’ as you. Even the South Downs for me is an hours drive at best.
Why not stay a bit nearer home for the 1st few outings - Suffolk has a lot to offer from 'pub-walks' to the coastal long distance routes.
You can even wild camp in the sand-dunes, and should pass close enough to civilisation to get an ice cream and top up the water supply
Plenty to choose from here :
https://www.thesuffolkcoast.co.uk/the-suffolk-coast---guide-to-walkingThe Suffolk Coast Path (53 Miles)
A walk along the beautiful Suffolk coast from Felixstowe to Lowestoft. The walk passes through the Suffolk Coast and Heaths Area of Outstanding Natural Beauty which covers 150 square miles in East Anglia and includes wildlife-rich wetlands, ancient heaths, shingle beaches and historic towns and villages. You will pass through Bawdsey, Snape Maltings, Aldeburgh, North Warren, Thorpeness, Minsmere, Dunwich Forest, Southwold and Kessingland.
Highlights on the route include the section around Leiston where you will pass the delightful Minsmere Nature Reserve - one of the UK's premier birdwatching sites. This section also takes you through the peaceful Dunwich Forest, the Walberswick Nature Reserve and the lovely National Trust owned Dunwich Heath. There's miles of footpaths through beautiful purple heathland and coastal views along the pretty Dunwich beach on this section.
Near Ipswich you'll pass the delightful Pin Mill where you can see lots of little boats in the River Orwell and enjoy refreshments at the 17th century Butt and Oyster pub.
http://www.gps-routes.co.uk/routes/home.nsf/RoutesLinksWalks/suffolk-coast-path-walking-route#