OpenCart configure delivery modules: Mail and SDEC

You need to work on a site with the ocStore 1.5.5.1.2 engine.
Current challenges:
1. Installation and configuration of the module of the Russian Post (sending in the Russian Federation)
- Sending parcels (price calculation based on weight and region)
- Sending valuable parcels (1st grade)

2. Installation and configuration of the SDEC module. The module is interested in the link below:
Tekst ukryty
Preferably, existing purchased modules are available.

3. Prescribe the display of price and delivery time in the product card