Fixed packaging price for shipping methods

-- HikaShop version -- :2.2.0
-- Joomla version -- : 2.5.14

Hello,

we have several shipping methods (according to the weight - 4 of them are by post and 1 pickup (free)) with different prices which are not taxed. Our aim is to add the fixed packaging price (taxed) whilst one of the 4 postal methods is chosen. I've tried to use for that purpose one more "manual shipping plugin" but have not yet found a way to unite two prices for shipping due to radio buttons.

Is there some way to do that?
Thank you for your answer.

Hi,
Can you give me more information about what you really want to do with your manual shipping methods ?

HI, Mohamed,
thank you for quick response.

For example.
I have 5 shipping methods (5 manual shipping plugins):
By post up to 10 kg - 10$ -
By post up to 20 kg - 20$ -
By post up to 30 kg - 30$ - these prices are not taxed.
By post up to 40 kg - 40$ -
Self pick up more than 40 kg - 0$

Also we want to add fixed packaging price - 10$ (taxed) for every postal method.
For example we have the order: 100$, 19kg and the VAT is 20%.
The final price (we want it to be) is: 100$ (taxed) + 20$ (By post up to 20 kg) + 10$ (fixed packaging price taxed) so:
Total - 100$
Shipping - 30$
Vat - 18.32 (16.66 (VAT from product price) + 1.66 (VAT from packaging price))
Final total total - 130$

We've added 6th manual shipping plugin, named it "Packaging price". But we didn't find the way to display packaging price only with postal shipping prices and sum them when they are shown. (see the attachment)

denoo wrote: I have 5 shipping methods (5 manual shipping plugins):
By post up to 10 kg - 10$ -
By post up to 20 kg - 20$ -
By post up to 30 kg - 30$ - these prices are not taxed.
By post up to 40 kg - 40$ -
Self pick up more than 40 kg - 0$

Also we want to add fixed packaging price - 10$ (taxed) for every postal method.

Our actual shipping prices are not taxed. So if we add that 10$ to them than the total VAT will be incorrect. We want to add it for every postal shipping prices, but leave them untaxed as they are.

Thank you. I made that prices all taxed (shipping and packaging).