Hello bullitben,
I like them both. I believe your '59 is a Viking. I have a '59 Viking 40 (1 1/2 ton) and it has a GVW of 14,000 lbs. According to my 1959 owners manual, you could either have a 2 or 2 1/2 ton model. Just curious, what size are your tires? The manual says you should have 9 x 22.5. It looks like you have about $1000 worth of tires alone.
The 261's are getting hard to find as well. My Viking has a 292 in it.
Welcome to the "Bolt".
John