Product options with replacement price and not the - or + mutiplier

The subject pretty much says it really. My customer has a bunch of products that come in different volumes, such as 700ml, 1L, 5L etc. She doesn't want to have to work out the 'default' value for, say, the 1L product and then use the - or + multiplier for the 700ml or 5L versions, or indeed create 3 seperate products. For example, she wants to apply a price per option as:
700ml - £4.99
1L - £6.99
5L - £9.99

and NOT using the multiplier:
700ml - £4.99
1L - + £2.00
5L - + £5.00

Looking for either a MOD or happy to work out some manual PHP code.

Cheers

well, then just look here, to find it all:
https://www.opencart.com/index.php?rout ... h%20option
But if your Customer uses a Custom Theme, this could be an enduring task, just be aware of such!
Ernie

Hi Ernie,
I found this in the marketplace - https://www.opencart.com/index.php?rout ... =42&page=2 which looks pretty spot on. I'm using the default basecart which I'm pretty confident will work fine. Cheers
Andy

Does anybody know if Opencart Support tickets actually get acknowledged or replied to? I've been waiting 6 days now and nothing. Just a simple question on the "Product Price with Options" extension.

Cheers,
Andy