Creation of a portal for booking boat holidays

Hi everyone, I have a project to submit to your attention, I need a cost estimate. before answering the following is required (no automatic replies please): A - read the request carefully B - view the sites indicated with due attention and completeness C - Keep in mind that we have a NON-EXTENDABLE deadline to have the portal in the test phase by the end of September and have it fully functional by the end of October. These deadlines are NOT extendable, so propose only if you are absolutely sure you can complete the project in these times. For this project you will have a 10% deposit at the assignment, the release of a 40% milestone when we will in the testing phase and a final payoff of 50% when the site is actually operational. If the expiration dates described are not met, you will not be paid. No time exemptions are granted for any reason, so do not propose yourself if you are not absolutely sure that you will be able to complete the project on time. Thank you THE PROJECT 1 - The creation of a portal similar to this [login to view URL] (please analyze it carefully) 2 - The data on the availability of the boats must be taken (via API) from this service [login to view URL] (please analyze it carefully) 3 - The process of requesting quotes, booking and various communications must be managed with the MMK CRM app 4 - Our portal will ONLY deal with catamaran holidays, so the data from the MMK DB must be filtered 5 - In our portal there will be the possibility to explore the whole world through a personalized gmaps map, where you will see all the boats available in the various locations; zooming sufficiently will also show the price for a holiday with that specific boat. Therefore the data coming from the MMK database will have to be interfaced with a customized gmaps map. 6 - Also consider setting up a review system similar to that of amazon: No trustpilot or similar. The system must allow direct management of comments to avoid abuse by trolls (a problem present in this type of business where competitors often post bogus posts to discredit those who annoy them). Only user who has participated in a holiday on one of the boats we offer will be able to express his opinion ONLY ONCE. The effective publication of the comment on the site must be authorized by us. 7 - Specify if you intend to use a CMS (wordpress) or if you intend to develop the site in another way 8 - the site must be developed in English, but it must be prepared for the subsequent inclusion of other languages (this part of the project will be developed at a later time, but the setting of the site must include this possibility) 9 - Google tag manager integration to record the events generated by users on the portal, so as to maximize google ads conversions 10 - Hosting will be provided by us (please specify any specific requests or technical needs) PS: in attachment an MMK service description to get an idea of the software with which you will need to interface