Excel bill of materials costing sheet insert items from lookup tables

Excel brains please help!

I'm trying to develop a "Costing Sheet" for totaling a bill of materials.
The sheet is easy for the user to build up a list of costs.  Each line has Drop Down Lists.
You can add new item rows on the sheet.


Eg.   If you were to design a t-shirt you would need a costing sheet like the following:

COSTING SHEET  (Bill of Materials)
Type of Garment ................................     {description}                       '   lookup Table 1
Fabric of Garment ..............................     {description}       {cost}     '   lookup Table 2
Embellishment on Garment ..............     {description}       {cost}     '   lookup Table 3
Job Template Cost ..............................     {description}       {cost}    '   calculation see {IF}
selection

Total __________________________________   $0.00
__________________________________________________

Lookup Table 1
Key ------  Code ------Description
1   --------  LS   -------Long Sleeve T Shirt        ' cost is determined on table 2 selection
2   --------  SS   -------Short Sleeve T Shirt       ' cost is determined on table 2 selection

Lookup Table 2
Key ------  Garment Code ------------ Description    ---------------- Cost
1 ------------  LS     ----------------------  Cotton           ---------------- $0.15
2 ------------- LS     ----------------------  Cotton Elastane -------------$0.20
3 ------------- SS     ----------------------  Cotton           ---------------- $0.11
4 ------------- SS     ----------------------  Cotton Elastane -------------$0.18

Lookup Table 3
Key ------- Description    -------------------- Cost
1 ----------  Embellishment A    -------------- $0.30
2 ----------  Embellishment B    -------------- $0.45
3 ----------  Embellishment C    -------------- $0.55
4 ----------  Embellishment D    -------------- {sub table}

Sub Table of Embellishment D
Key ------- Description    -------------------- Cost
1 ----------  1 Colour Print    --------------  $0.10
2 ----------  2 Colour Print     -------------- $0.20
3 ----------  3 Colour Print     -------------- $0.30
4 ----------  4 Colour Print     -------------- $0.40

Job Template Cost
IF LOOKUP TABLE 3 selection = 1 THEN  Job Cost = $0.50 ELSE
IF LOOKUP TABLE 3 selection = 2 THEN  Job Cost = $0.80 ELSE
IF LOOKUP TABLE 3 selection = 3 THEN  Job Cost = $0.90 ELSE
ELSE Job Cost = $0.00



It is like a database driven costing sheet  -  However it needs the flexibility to add new items.

This is example of a complete costing:
COSTING SHEET  (Bill of Materials)
Type of Garment ................................     [Long Sleeve T Shirt]
Fabric of Garment ..............................     [Cotton]                                                   $0.15
Embellishment on Garment ..............     [Embellishment D]   [2 Colour Print]       $0.20
Embellishment on Garment ..............     [Embellishment A]                                  $0.30
Embellishment on Garment ..............     [Embellishment B]                                  $0.45
Job Template Cost ..............................                                                                    $1.30

Total __________________________________   $2.40



I hope this explains what I'm looking for.   The most complicated part might be calcualting the 'Job Cost' line which I've used a IF formula, but it probably could be done better via a linked table or another method.

Open to all suggestions.

It could be done using a form with buttons?
It could be done using VB code?


I appreciate any advice.

Thanks
Mchalllinor