Small Tractor Undercarriage CAD Engineering

I'm looking for an experienced CAD designer to help me model a custom, articulating flex frame inspired by Ventrac-style compact tractors. Review this link to see the flexframe performance https://www.ventrac.com.au/advantages/flexframe As you can see from the reference media, these machines feature an articulating center pivot that allows the front and rear chassis halves to twist and pivot independently, keeping all four wheels on the ground across uneven terrain. What I need: - A complete 3D CAD model and assembly of an articulating tractor frame. - Proper incorporation of the center pivot mechanism (steering/articulation joint and oscillation/twist joint). - Design for Manufacturing (DFM) considerations and Finite Element Analysis (FEA) to ensure structural integrity under load. IMPORTANT: Please carefully review the provided images and GIFs attached to this post to fully understand the exact articulation, motion, and twist mechanics of the frame before applying. To ensure you have thoroughly read this proposal and paid attention to the details, please include the word ARTICULATION in all caps at the very beginning of your response