Nick- I waited years and years to find a 5x7 enlarger because they were always so expensive. I finally found an old B+J 5x7. It comes apart in three pieces;has a glass film hoider and plenty of bellows. I made an adapter so it now has a Zone-VI VC head on the top but Aristo has a V54 that will fit this light. I have never seen another like it but I'm sure they are out there.
Regards Peter