Let me re-phrase this post:
I run a small design/build electronics business.  I try to hold no inventory.  Almost all items are entered as R types and are included in MRP generation.  I really use DBA/Evo for it's BOM creation and job costing features.  All my WO's are simple types with labor being issued as an inventory type.....no workcenters.
 
When a project comes in I would like to generate an MRP that disregards inhouse inventory levels and only generates PO's for SO's, WO's or Forecasts.  PO's would be have exactly what I need to fill WO's in hand and I can use the LIST option to manually adjust the few items that I know I'm carrying on the shelf.  Right now I use the LIST option but end up adjusting most of the PO qtys.
 
The reason for all this is that my inventory items are cheap and I often have outside PO's drop shipped to subcontracting assembly houses.  It's not worth the expense to bring orders in house to combine with on-hand inventory and ship full kits back out.
 
Any ideas ?

That sounds like it's just what I want.  Can you quote me?  You have me email.  Thanks.

Thanks but after I've accumulated extra components over several WO's (due to purchasing lot sizes) I need to bite the bullet and allocate them.  When I do need to pull down inventory it's the dreaded extra work but it has to be done from time to time.