Tinkercad Geometric Shape Modeling

I need a clean, accurately scaled geometric shape recreated in Tinkercad so I can use it as a template for further work. The exact dimensions are already defined; as soon as we begin I’ll share a simple sketch with all the critical measurements. All I’m looking for is a faithful digital model that matches those numbers precisely.

Once the design is complete, send me the editable Tinkercad link and an exported STL so I can verify the size in my slicer and, if needed, proceed straight to 3-D printing.