work for you?
BORA 50" Parallel Clamp - 2-Pack 74.99+10% off for Amazon Prime $67.50
These are great for large glue ups and general clamping of larger items. 50" is a good size for cabinetry and desk tops.
No.... the Bora need pressure to come into parallel, while either of the Bessey are already parallel out of the box. It is not a big deal unless on a fragile glue up, where you may not want that much pressure for the Bora to come into parallel.