definitely get the dimensions. there are a whole lot of 125's around that are being listed as 150's. Also, don't underestimate the metal stand if its a good one.
all the LFS's in my area carry metal stands made by a local manufacturer that are much stronger than the normal wooden ones from Perfecto etc. I have them on all my tanks, all are designed for two tanks, and they can handle huge weights. I have one with a 90 on top and a 65 on the bottom for the last 15 years.
but they are not those 'iron angle' ones.
they are like this:

all the LFS's in my area carry metal stands made by a local manufacturer that are much stronger than the normal wooden ones from Perfecto etc. I have them on all my tanks, all are designed for two tanks, and they can handle huge weights. I have one with a 90 on top and a 65 on the bottom for the last 15 years.
but they are not those 'iron angle' ones.
they are like this:
