You'll need engineering on making an underground pyramid for the wall if making it out of limestone blocks.

Alternatively there are other companies that have a wall attached to a big block. Still needs engineering for council approval.

Because of that, best bet is to go through the yellow pages (unless someone here does it) to find a company that can do it all.

__________________
[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]