The Pros for having a metal sheet will be
1-longevity they last upto 40-70 years depending on the material
2-durability they can sustain wind gust there are less chances of getting cracked abd they require less maintenance but they should be inspected periodically
3-they wont spark and ignite...
I am sorry for being too late but still you have got a good deal but you might have looked for mini wood lathe which would have cost you something around 200$ for new piece if that interested you,there have been discussion about it on forum its an old one but still you can check here to know...
Some of the predominant gear oil manufacturing companies are Adroit Pumps, Honor Pumps, Rotofluid Systems, American-marsh Pumps and Ampco Pumps. Gear oil pumps price depends upon their size, power, application, etc.
I don't use a tool box for keeping screwdriver what I have done is made a circular wooden hollow ball with holes on it the dia of it is such that the screwdriver gets placed into it easily and can be taken out easily whenever needed.