You can do all of that through Wix Code, however as you have pointed out that it will involve some coding on your site.
Some will be easy to learn and implement, whilst other parts can be more challenging, which is where the Wix Code Forum comes into great help.
I suggest you have a good read of this section about Wix Code
https://support.wix.com/en/corvid-by-wix/basics
Your Wix Site is whatever you want it to be with the use of the Editor and the adding of Wix Code.
Wix has its own CRM, you can create user inputs without code through Wix Forms or create your own user input forms with the use of code.
Like a contact form for example, that can be pre-done in Wix Forms for you, or you can do it yourself through code and have whatever you wish inputted on there.
You can easily have a dataset collection that people can view on a repeater on a page, which is basically a container showing the same things over and over again, perfect for property lists etc.
You can simply set up one repeater and connect your dataset to the fields that you want shown from your collection and then it is copied and applied to all the repeater listings on that page.
This can easily be searched by property type, size, bedrooms, price etc by filtering your collection with the use of code.
The possibilities are endless, however it all depends on how much work you what to do on it yourself. If you would prefer to pay somebody to do it for you then you can go to Wix Arena to hire somebody.
However, making the website yourself would always be more rewarding, as not only do you obtain the knowledge and skills needed along the way, you also have complete control over how everything is setup and implemented without having to go back and forth between different people.
It will seem like a big step up and a big task to begin with, however the more you get used to doing it all yourself, then the more easier it will become and the more understanding you will get of it.
We’ve all had to start from the same or similar position to yourselves and believe me, once you get going and doing it all, you will soon get into the swing of it and with the use of this code forum and the API section - https://www.wix.com/corvid/reference/ - you will soon be making progress.
I would recommend bookmarking any page that you read like the Wix Basics, Wix API pages, tutorial pages etc, so that you can get easy access whenever you need it.
Plus, also keep this page stored too, so that you can check it for info about repeaters, datasets, forms etc from within the Editor.
https://support.wix.com/en/the-wix-editor/editor-basics
Like repeaters in lists and grids or datasets in Wix Data.
