Everything is rated for 5000 psi or more, with the exception of my Foster fittings. The combo valve/bleeder is rated for 6000 psi IIRC, here's the link to that part:
http://www.scuba.com/scuba-gear-161/031808/Sherwood-High-Pressure-Panel-Line-Valve-with-Bleed.html That was probably the single most expensive part at about $50. Oops, just looked at the link, the price has gone up in a year! The rest is pretty straight forward, two 1/4" 5K psi hydraulic tees, two 5K gauges, NOT liquid filled, I kept having leaks with the glycerin filled gauges. Liquid filled is great for damping needle movement in high vibration applications, but I don't think it's needed in our app. My needles don't bounce. Oh, and bigger is definitely better. 1/4" hydraulic hose ending in a standard brass female Foster fitting. Like I said, except for the valve/bleeder, the rest of it I got from my local NAPA. I do need to change out the hose, it works, but it wastes a lot of gas compared to a micro bore hose. And I don't think I'd recommend brass Foster fittings, I think I'm getting some galling, makes it tough to swap out fittings sometimes. Spend the money for stainless steel, they should hold up better and you'll get a higher pressure rating. Later.
Dave