compressor help

[heeroyue2002]

i purchased and older compressor. works great. i still need to change some fittings and i need to replace the guages. the original was a 20 psi and it was completely broken.

heres my plans for it :
so far im going to change the oil, add some air filters and the gauges plus a air regulator. i also took off the old wood it had as a stand and i want to add some wheels, maybe the pneumatic/air ones so i can roll it around my dirt yard. i need an air hose. its currently at 1/4 out i believe. should i make it a bigger size? i also want to add a turn valve for the drain valve at the bottom.

i would like some help with the size etc but i cant seem to find any info about it online. its made by the american brake shoe comp
B1411 serial 407712
heres some pixs.