whelp..if I was FORCED..gunpoint maybe..to pick just one

and my 8x10 was a reasonable weight (unlike green monster)... I would look for a medium heavy twin shank Linhof ..or

and this is a bit crazy.. a Bolex aluminium tripod with a 1047 3way head -light, sturdy, cheap enough and it holds my linhof 5x7 tech easily - which weights a lot. The drawback is it doesn't get really low