For some product we have multiple vendors

Each vendor can have different price breaks based on quantity ordered

Each vendor can have different min order levels

Different vendors use different unit of measures

We often buy in Different UoM to What we sell

I am trying to add them as suppliers on a product, but some supplier sell their goods in different UoM to others, how do we do this?

Here is an example
supplier                     min order Qty                 UoM                         price (per pack)
Supplier CC              2 (packs of 4)                 pack of 4                   £1.82
Supplier CC              3 (packs of 4)                 pack of 4                   £1.56
Supplier CC.             5 (packs of 4)                 pack of 4                   £1.34
Supplier W                1 (Pack of 100)               100                            £54.77

So how do I add these (this is easier than some of the other products which have more UoM) Without making the PO look really confusing and without increasing to extra decimal points.
Seems this would be normal in any business

Attached  is an example of what i mean the top half of the image is how we have had to put products suppliers in and the bottom half of the image is how we would like it to be done

As you can see, ordering 0.08 of a product that comes in sets of 4, but is displayed in units of 100 is open to so many mistakes and problems. 

On our current system we would order....

2 lots of 4 (@ £1.82 per Pack of 4) = £3.64

On Odoo we would order need to order.... 

0.08 of 100 (@ £45.50 per 100) = £3.64

I hope this is clear we just feel this is going to be really difficult on our PO for suppliers to understand and will also cause issues internally
Please let me know if there is anything you are able to help with or if anyone else has had similar issues and what solution they use. Would it be able to be customised to display correctly for us or would this be a massive undertaking. Look forward to your really with a really easy solution hopefully

I hope this makes sense be great to hear some suggestions!