min value product with diff options

Hi,
I need to create a product with a minimum sale value of $500.

The product must have 5 options which can be selected in any combination as long as the value comes up to atleast $500.00.
ie option 1=0KG, option 2=0KG, option 3=0KG, option 4=50kg, option 5=50kg.
the default options will be something like;
option 1=20KG, option 2=20KG, option 3=20KG, option 4=20kg, option 5=20kg

The different options will be calculate based on weight. The different options will have different price values.

The different options make up the full sale value of the product.

I would like the minimum sale value to show as the product price.

Option attributes will need to be able to both add and subtract at the same time as ensuring the minimum order value is met.

Can anyone explain how to do this?

cheers

option 1=20KG, option 2=20KG, option 3=20KG, option 4=20kg, option 5=20kg

Can anyone explain how to do this?
Don't even understand as all options are the same????

Sorry for the confusion
The scenario is;
the product is a selection of prime cut meats of which there are 5 different cuts. We want people to be able to be able to select any combination of the 5 different cuts, but the total sale price must be a minimum of $500.00. The total sale price can be any value over $500.00. Each different cut of meat has a different price per KG.....

We want people to be able to be able to select any combination of the 5 different cuts, but the total sale price must be a minimum of $500.00.
I do not know exactly what this is but at first cut it appears that what you seek is termed dependent attributes
Where selection of one attribute affects the the selection of any other.

This functionality is not a feature of ZenCart

If I am not understanding your requirement correctly maybe a exact example would assist.

The minimum $ order is not an issue but the combinations are which from what I understand is along the lines of a 5X matrix