N-Step workflow

Dear All,

I want to implement the N-step workflow. Can you please suggest me on below scenario.

My business scnerio like below.

We have to setup 10 level approval stragey based on Account assignment,plant,value(driving fields). What we are thinking is we will maintain all the above values at Z tables.

My ztable will contain these fileds.

Requisiotner id,plant,account assignment,value range,approver1,approver2,approver3----10.

Once user creates a shopping cart, system have to check this Z-table and has to pickup all approvers from this z-table.

Can you please suugest us is there any anyway we can implement this type of solution..

Please let me know

Thanks

Ravi