Another thought on air... don't go too small diameter for your main run. Second thought add more shut off valves in the system. It is so nice to be able to shut off and isolate a small portion of your air system for repair or additions. Most shops I have worked in had ONE maybe two shutoffs if you are lucky. Sucks ass having to shut down the entire air system to change one fitting.
Place I worked, we had moved the shop, and We (or maybe it was just *I*), hard lined the air dryer in..
Not a smart move.. One of the fans in the thing died, and the drier froze up.. We were down for 3 hours
while it thawed enough to let air through... Just pull out the back up compressor.. Well, that also
went through the air dryer... But couldn't I just run a line from before the air dryer to after it and
keep going? No, there were no fittings before the dryer....
After the thing froze up a second time, got out the torch and un-hard-lined it.. I put a shut off on the
in and the out, and put a bypass between them with another valve.. Ran down to the hydraulic store and
got some short and fat quick connect hoses and fittings to go to the air dryer.
Think about a lot of *What If* situations, because if you don't think of them ahead of time, Murphy will,
and it will bite you in the ass.
One thing I think would be handy, and I'm going to do it.. A way to shut off the air to your main tank,
so when you have a 5 minute job on a Sunday, or just need to swing through and pump up a tire, you can
pressurize the system really quick, do what you have to do and get gone instead of sitting around waiting
for the system to come up to pressure.