I have a really nice Feisol 3441S
Carbon and very light weight and packable.
I can send u the specs or u can look it up.
I also have two different ball heads....the Feisol cb-40 and a Swiss Arca mono ball.
For spotting either would work great. The Swiss Arca is much bigger and will handle lots of weight.
Tripod has the center column and hook along with the quick detach Arca attachment. It will fold down to around 18-19" and fully extended is about 64-65".
I'd let the stuff go for a good number.
I went to another Feisol for shooting, one that doesn't have the center column, and I use the same Arca Swiss head.....somehow I wound up with two.
Lemme know if you'd like some pics.