Characteristics, Bulk Discount and Totals is it possible

-- HikaShop version -- : 2.6.2

Hi

I have been trying to figure this out but I cant seem to find a solution.

My problem is this:
The site offers a range of different course that we sell.
I am trying to add an event registration "Product"
The main purpose of this is to allow a corporate to book a workshop for X number of people.
The info I am wanting to get from them is the following.

• numebr of peole attending
• Do they have their own venue or should we rent one
• Do they want us to supply food

Till this point, I am fine cause I can use custom fields, characteristics or options to do this.
What I can't manage to get right is I want to give bulk discount on entry fee based on number of people at the same time venue cost must increase per 10 extra people and food must remain a flat rate per person.

This is still reasonably fine but where the problem comes in is displaying the cost, what I want is the following.
Eg1.
10 People attending, they want us to rent a venue and they want food.
I want to then display on screen without clicking add to cart
Total Cost is 15 000
Basically what I want is to display total cost Live on the product page so as they change the quantity or any characteristics the price must instantly update.

I know you can use java script for this but I have no idea how to get the Price, Quantity and other Hikashop values to do this.

any solution you can come up with would be great

Hope I explained myself well enough

Thanks