Regarding your steering box (and the adjustment of)- please note that these things don't use "grease", as grease will not flow back into the areas between the gears when it's been "squished out. They use an extremely thick oil which continually flows back into place, which I believe you can make by a bit of grease and oil together. Ages ago I posted a link to a thread on another site which detailed taking one apart and setting it up properly (and what to use as lubricant)- I'll see if I can find it. Al
PS- And to add just 1 more voice- there really is no need to run oil lines all the way to the front of the car (and back). A cooler with temp controlled fan and full flow filter assembly (which, if you pick the right 1 will have a thermostat built in so oil isn't sent to the cooler until the oil need the extra cooling capacity) mounted in the left rear wheel well has already been proven to work and there's not the wasted power of the larger pump pushing oil along 20 extra feet of line.
Even rubber lined stainless steel hose has pumping loss- the best choice is to use teflon lined hose.
Another PS- (the important 1)- I found it- check out Hotrodsurplus's post about half way down the page- rebuilding steering boxes