Steel Extension Device with Remote Control -- 2

I'm seeking a skilled engineer to design and build an extension device. The platform should travel at rates of 0.5mm, 1mm, and 2mm per minute, and be capable of pulling a load of up to 4kg.

Key Requirements:
- Movement speed: 0.5mm, 1mm, 2mm per minute
- Load capacity: up to 4kg
- Control system: remote control (wired)
- Material: steel

Ideal Skills and Experience:
- Mechanical engineering
- Experience with remote control systems
- Proficiency in working with steel

Please provide detailed bids including timelines and past experience.