Build a full RMS integration for Wordpress

This is a multi homes accommodation booking platform.

We require a RMS Cloud integration for WordPress that can ideally :
Display an overall availability search widget to be able to search by date and display a list of properties
Display an availability grid display per property (pulling the information from the unique property ID via the RMS Cloud REST API)
Ideally a WordPress plugin if possible (with on going support for WordPress compatibility)
- Must not have any ongoing maintenance costs (if possible)
- No hard coding of theme/functions.php etc

Platform :
https://www.rmscloud.com/features/property-management

Existing RMS embed option :
https://www.rmscloud.com/features/book-now-button

RMS API access :
Documentation: https://app.swaggerhub.com/apis-docs/RMSHospitality/RMS_REST_API/1.3.6.1

Overview: https://www.rmscloud.com/technical-support/developers