What is the right approach of Release Strategy in Purchase requisition ?

Dear  All,

What  is  the right approach  of Release Strategy in Purchase Requisition in standard .

We have  activated , (Set Up Procedure Without Classification) .

We determine in the basis  of  material group

Now management’s requirement  is   we make it two tire  release code.

Between   value   1000 one  approver.(Release point)

And   above 1000   another approver (Release point).

Is it possible through   Set Up Procedure Without Classification ? How?

1=because ,  as  per my understanding  the  Without Classification used for line level

Not  for  header level  in purchase requisition  .

How  the  configuration   for two step?

With in  1000  value for one approver

And  above 1000  value another approver.

Just go through  the attachments?

My Approach is,

1=release code     desc..

    01                     PR-HT

    02                     PR-HT

2=

   Release ID        Desc

    2                    RFQ/Purchase requisition

3=

Release Strategy   C1 C2 C3 C4 C5 C6 C7 C8  Rel.ID   Desc

S1                                                                  X          Blocked

S1                        X                                        2          RFQ/PR

S2                                                                  x          Blocked

S2                        +   X                                    2          RFQ/PR

4=

Rel. Str   Release Code  Desc           C1 C2 C3 C4 C5 C6 C7 C8  

S1                01                 PR          X

S2                02                 PR                X2

5=

Acc.Assig   Mat Grp.     Plant    Value of PR   crcy   Release Strategy

                  C-BELT        1100     1                  INR    S1

                   -BELT          1100     1000             INR    S2

Please Guide?