Peterson has everything you need except the oil pan. You can modify an after market pan to work, depending on what mains you have there was some oil pans for sale on racing junk. For an oil tank you won't need a monsterous one like the circle track stuff, an 8qt should be fine in a drag car.
Sorry if OT, what purpose do the bigger multi gal tanks then serve for circle track, better air separation, more capacity for longer runs, offesetting small leaks, thermal (they already run coolers?), etc?
Was looking at Barnes pump,(used). Hardest part is pan. Can't find any used for 340 mains. Will by new but what manufacturer ? Do have a qualified fabricator if need repaired for some reason!
If you have stock steering fitting a 6 stage pump will be difficult, I use a moroso 5 stage and relocated it to the right side of the engine with the stock K member you probably have to make a custom oil pan
We are doing a strut - rack front this winter. Car is alcohol mechanical injection with Ron's toilet. Pump is on drivers side motor plate. Have to mount oil pump on pass side. Pan is biggest decision as there are not many off shelf I can find. All Chevy and Ford as usual!