The Universalis system is modular. So you can buy a camera, say the 4x5 camera, and add the conversion kit parts as needed for DSLR use or MF.
For the 4x5 to convert you will need a DSLR conv kit, which consists of a DSLR bellows, a bayonet mount, and a monobalfix Arca-Swiss L bracket. The DSLr bellows allows use of lenses up to about 120mm. For close-ups, the longer accessory bellows-DSLR, of 50cm may be required, or a hard extension tube may also be used. Very quick to change in the field.
Questions, ask me or your dealer.
Rod