Refinement of site on Bitriks

There is a site on Bitriks with the add-in BXReady. Website address –

Please calculate the cost of improvements, preferably separately:

1. Conclusion in the cart block Related products to do dopadaju client.
For example, in the product related elements
Here it is necessary to display in the cart under the shopping list of the client. If in the cart a lot of goods to display in the carousel all related products. If related items are a lot, to make the possibility of limiting the display of these items in the carousel (for example 20 PCs).

2. Modify themselves Related items, for some reason there is no "Buy" button, instead it turns out the "More" button. To conclude, by analogy with "Personal recommendations". (see the item card

3. In the item card to reduce the huge space between the button "Back", block "a Personal recommendation" and the unit "buy With this item"

4. Increase download speed of website, test Google a very sad performance (cell – 1, PC – 19), although all the images are clipped:



Write the cost of the work and approximate deadlines.