14b install checklist

Ok I m pretty much ready to go here just need to round up a few more things and find the time.
I have the feed and return lines, the J pipe and gasket, the exhuast mani gasket, and the o2 housing to turbo gasket, oil and oil filter, boost controller, some sillicone
Still need new coolant, a bung to weld into the J Pipe that vacuum line fits on. Now where I need help is I want to grab a bunch of extra crush washers, what size/sizes do I need? And I heard that you should replace the rubber coolant hoses? Mine look fine, but if I do replace them, they are called 5/8" heater hose from what I remember? And last of all I want to redo my vacuum hoses in that area, honestly hav never had to buy any. What do I ask for? I assume they would be sold by inner diameter? Would they be like 1/8th hoses?
Thanks

I got my coolant lines from autoparts. They will sell you robber fuel lines which are better quality compare to stock. Bring your old line and they will match the size for you. Remember the lines they sell are straight and Mitsubishi is using lines that are bent! If you bent a straight line over 90 degrees you will reduce/close the diameter of the line. Don't bent them too much!

Also, make sure you buy smaller t-bolt clamps for those lines.