Add features to our Wordpress website

Urgent! We have a website created with Wordpress( www..[login to view URL]) and I need the normal features for vacation rental booking and here there are : 1- Check the villas search engine and you see that the criterias are dates and number of persons. I want : DATES AND NUMBER OF BEDROOMS not number of persons, so that tab needs to be changed to "number of bedrooms". 2-Once you enter the criterias of number of bedrooms and dates, I want the result to display the total price for the stay at the requested period. By the way, on each individual villa page, you have the price per period (low season, high season, Xmas and New Year) and the price per bedroom (for ex: 1 bedroom out of 6 cost). I want the website to be able to calculate the total price based on the number of bedrooms and the number of days for the period selected! For example: a villa 3 bedrooms cost 1000 per night at Xmas and New Year, when the customer selects 20 December to 5 January for a 3 bedrooms villa, I want the result to display the total price of 1000 per night multiplied by the number of nights for the 3 bedrooms villa (like 16 days at 1000 = 16.000), which is usual with online vacation rental booking site. 3-The pictures on our website have panoramic banner size, cutting almost the essential of every single photo, we need to change the banner size to fit our beautiful pictures or to add photos side by side (side by side banner). 4-The currency displayed on our website is dollars, we need to have price displayed in dollars for villas rental and price displayed in euros for hotel rooms booking. The conversion should be operated with an online automatic converter. 5-Also, I would like to create a villa planning calendar. This villa planning calendar needs to be connected to the big company that I represent. Their calendar is always updated every day. I've talked to their webmaster and they said it is possible. So if you have a good price and everything is done correctly the way I want, I will give you the marketing campaign and promotion SEO job (it is better for us to work with only one company, so we seek a long term business relationship). Remember! Everything needs to be done as soon as possible, so we can start the marketing campaign. We do not want to lose any time and we do want you to respect deadlines. Waiting for your offers guys ! Thank you in advance.