Hiding base price, only show option price

[colinr]

Basically all products in my shop have options but instead of all the products being BASE PRICE + OPTION PRICE I want to run it as zero base price then the OPTION PRICE being the actual price.

 

Eg.

A 1kg pack costs zero + 5.00

A 5kg pack costs zero + 15.00

 

I can set up the options and remove the price from the top-right of the product info page but am stuck on the following:

[*]If I remove the + prefix from the option it subtracts the value so all my products have negative prices

[*]The order overview in cart and checkout shows the value as ?0 and underneath has +?5.00 - I need this to just show the item total not separate base / option prices

I checked the contributions but can't find anything that looks like what I want. Looking at the source for /includes/modules/order_details.php (I think this is the only file that needs changing?) I don't think this is going to be a comment-out-a-line job.

 

Can anyone help?

 

Thanks,

Colin