If product in pack, display pack

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Hello.

I don't know if i write to correct forum category. If not, i'm sorry.

I need some help, for some implementation:

1.  Product page. I have simple product, and also pack product
   

When client is in simple product page, i want to display before description the option of the pack (with price, of course, because the pack have discount buying together).

So: If product is REF1 - (and pack content is REF1+REF2+REF3 with XX% discount), i need to offer this information too.

Also this information i need to show on shopping cart summary too.

I need add some condition in blockcategoryproduct. Exacly, i don't want to show the product of same default category product, I want to show the all the product of category > 50 (50 - is id_category of my condition) 

 

2. Category page

I need to display some list (not only the products):

- Best subcategory viewed of category

- Best product seller of category (subcategory)

- List of product promotion from category (subcategory)

- Featured product of category (subcategory)

 

P.S. I don't see any module can do this.