Welcome DM.
For a really cheeeep carry box for the tube, you can use a length of 6" stormwater pipe, cut it in half lengthwise and line it with strips of foam. If you then get two endcaps and slip them on the ends, the halves won't come apart then. You can even fix a couple of knobs on each end of the split tube to stretch a thick rubber band across the ends and down the sides of the tubes to make sure the endcaps don't come off.
What about the focuser I hear you say.

When you buy the stormwater pipe, also get a pvc "T" piece that would fit over the focuser. Cut the long section of the T piece lengthwise. It doesn't need to be exactly in half, just so long as you have pvc to paint with pvc cement on the outer surface. Cut a hole where the focuser will go in the 6" pipe the same diameter as the T piece tube. Poke the T piece section through the hole and cement the long section to the inside of the 6" pipe section. Now just cap the end of the T piece.
You can now fix handles to the 6" pipe and Bob's your uncle. Cheap, easy and safe for the scope. Just make sure you have foam in the endcaps as well.