Brief:
Let first lay out a few things that i want the end product to have.
- First Version
- All in one unit with at least:
- Oscilloscope
- Signal Generator
- Power Supply
- Not take up too much space
- be USB programmable
- have PC Software (ideally, same software for all functions)
- All in one unit with at least:
- Second Version
- Multimeter
- MSO capability
- more I've not thought about
You are clearly a different problem from me.
I would never do a project like this, and I guess you'll regret removing the TFT (+ buttons?) from your scope pretty soon.
I would just make a simple (wooden) box myself to put the equipment in, and then connect the box with a single power cord. This way you still have everything neatly together, you can add a carry handle for easy storage. You can also add an USB hub or network switch if you have multiple tools that can be connected in that way. Plenty of possibilities in that direction, and quite easy to make.
But as I said before, you are not me, and it's your project.