OBS Setup for TikTok Gaming Stream (Trying to Stream Portrait + Landscape at the Same Time)

I'm looking for a skilled freelancer to help me set up an OBS stream for TikTok. I want to stream gaming content on TikTok in both portrait and landscape formats. I ALREADY have a stream key available for RTMP access.

Requirements:
- Use of a TikTok stream key (which I already have)
- Setup on OBS
- Custom overlay or scene setup assistance
- Help with setting up different OBS profiles for portrait and landscape streams

Ideal skills and experience:
- Proficient in OBS
- Experience with TikTok streaming
- Ability to create custom overlays and scenes

Please provide a detailed plan and any relevant experience in your bids.