Magento Booking Website Modifications / Fixes

Hello freelancers, I`m running a website for booking unusual hotels under www.crazybooker.com. It is based on a Magento script from Apptha. When adapting to the special requirements, the following errors occurred that should be corrected: 1) The field for specifying the number of guests should be set to 2 by default (currently the maximum possible number is displayed) See screenshot 1) 2) A space must be inserted between the currency sign and the quotation. In addition, the prices are to be displayed in the booking box in the format 0.00 (with two decimal places) after entering the date. And the entry of the processing fee should be rounded up to 2 decimal places ($ 12.40 instead of $12.3954) see also example screenshot 1 3) The forwarding via the booking button to Onestepcheckout doesn't work anymore for some unknown reason. Please restore! 4) In the Onestepcheckout (includet in the magento script) the data from the booking box (number of guests, date of arrival, departure date, number of nights, prices...) are partly no longer taken over. Please arrange the information and prices clearly arranged and in a uniform format. Please make all changes using the example of [login to view URL] (based on stylish theme). 5) In this case, the map does not seem to work (as opposed to other properties). Please correct! I am looking forward to numerous offers and possibly a longer-term cooperation. Please only bid if you have read this task description carefully and are familiar with the subject matter! I also like to give newcomers with few ratings a chance, if the impression is right and the communication fits.