More oil, less tightening, usually will make the chain last longer.
The rear axle may be hollow. If so slide a thin rod thru it, and support each end of the rod on blocks of wood. Now you have a cheap stand. The guard over the top of the chain, is to catch the oil that is flung off the chain. Without that it would get messy. There are many chain cleaning devices available for use when the chain is on the bike. I do not have one so can not comment. Fortunately for you, I am not the only one awake on this site. 5,800 miles is not very much. I would just oil it and have a beer break.
My 006 Suzuki has about 40,000 miles on the original chain. It looks fine.
UK
The rear axle may be hollow. If so slide a thin rod thru it, and support each end of the rod on blocks of wood. Now you have a cheap stand. The guard over the top of the chain, is to catch the oil that is flung off the chain. Without that it would get messy. There are many chain cleaning devices available for use when the chain is on the bike. I do not have one so can not comment. Fortunately for you, I am not the only one awake on this site. 5,800 miles is not very much. I would just oil it and have a beer break.
My 006 Suzuki has about 40,000 miles on the original chain. It looks fine.
UK