Jerold,
Original post was for an 8" x 10" camera.
I purchased a Ries H100 for my Linhof Technikardan 45S to use with my Arca
Ball heads (original Monoball and B1). However, I usually use one of my 3 Gitzo Carbon Fiber tripods including my new 1257LVL (leveling tripod) (and my original 1228 used in the past with a Linhof Profi II head) used with a Markins M20 Ball and a Kirk 2.5" QR. However, this set up is more for backpacking. I also use an older Gitzo 1325 (equivalent) with a Gitzo 1321 Leveling base. But these Gitzo's are only used for a 4" x 5". The smaller of the Gitzo tripods supports 17.5 pounds, the 1325 supports 26 pounds. However, even though these have the strength, they are very light and would need to be used with some care with the 8" x 10" cameras.
If you want a Gitzo Carbon Fiber tripod you may also consider the 1548 which weighs only 6.75 pounds and supports 33 pounds. Again, however, care would be needed with the larger cameras (only due to the tripod weight).
Rich