Yes, the LR3 had printable blocks that could fit on the lead screw threads. Unfortunately the LR4 design doesn’t allow for that, so a wooden block at each end of the gantry is your best bet.
I have a (heavily modified) LR3, and a tiltable table, and I leave the gantry attached. I use a couple of small pieces of wood clamped to the edge of the table to keep the gantry from sliding off, and a bungee cord on the other end to keep the gantry from tipping. This may not work if your table tilts past about 75 degrees.
Watch that the endstop switch arms don’t get snagged on clothing, belt, miscellaneous object, etc. They can pop off and get lost really easily. It helps if you sweep and vacuum the floor before you move it, so that you can find the little arms on the floor when they fall off.