Carpet stone patio (again!)

[bfgjohno]

Good afternoon.
I'd be really grateful for your advice.
We have a 1750's Yorkshire Dales house with a patch of gravel (3.5m x 3m) beside an area of flagstones (3.5m x 2m). Rather than extending the flags we want to replace the gravel with Rustic Red Carpet Stones. We are keen to get a slightly undulating surface (to look old) and have sand/moss/thyme between the stones. The gravel area runs up to the house (no damp course but a metre below floor level (suspended floor), There is a soak away for the roof under the gravel.
We are amateurs at this.
We are thinking of leaving a 20cm or so wide gravelled area between house wall and carpet stones (with a weed preventing membrane beneath.
We were planning to dig down and lay a weed resistant membrane then 50mm of sharp sand and bed the carpet stones on top of this before brushing in sharp sand between (as per http://www.aggregate.com/documen....es.pdf) The edges will be bounded by some small flags which can be mortared to prevent sand spilling out through gaps.
Drainage is my concern and my wife doesn't want a big slab of concrete in her garden (even if covered with carpet stones)!
Has anyone used this method? Any thoughts/concerns? Is the gravel gap big enough/the right think?
All the best
John

[lutonlagerlout]

lot of sand bedding and very little cement there John
I can see what you are trying to create but if laid on just sand with sand brushed in it will be a mass of weeds in no time

a picture would help immensely

LLL

[DempseyLiverpool]

Reclaimed Yorkstone setts only way to go.

[bfgjohno]

Images you asked for , images you get!
Thanks for the help.
John