I started a project today making chains for my 2440. The tires are 18.4x30 and pretty worn so chain should help out with the snow/ice. I sketched this out so that I'd have 16 x-overs or one about every 22.5% (ended up cutting one out to get the fit right).
I used 1/4" bulk chain from Harbor Freight - it $29.99 for 35 ft. Since there is no big loading in tension, I think this will work OK. (we'll see). These won't ever see concrete or asphalt so wear shouldn't be a factor.
At the joints, I cut the links, twisted enough to un-couple, and re-connected. I have re-straightened the links in test fitting and will weld after final fitting.
Looks good (to me) so far. We'll see after some use.