It's not the space for the press. It's the peripherals, the accouterments (or, in Okie-speak "uh-COOTER-mints").
Ya can't have just a press, no matter how small. There's dies, powder, projectiles, measuring apparatus, scale, etc etc etc.
We used to have a travel trailer. Even for 2 week trips, it gets small in there in a hurry.
Yeppers on the space. Now, figure a couple having a 38 1/2-foot fifth wheel, into which ALL of their belongings fit. None of this "use of an RV for a two-week vacation." We literally live full time in our RV.