Having what looks to be a king pin D60 (very good axle) using leafs, your best and simplest bet would be a fresh set of F350 leaf springs and shackles, and a good set of stiff shocks (like a kyb monomax)
Beyond that, it looks like you are overdue for a lot of maintenance just on the front end.
Tie rod ends look suspect, and it looks like at least one axle seal is blown.
I believe f350 springs are 54" long, his are 46", could end up with some fab work.
(There is a CAT scale at the Broadway/I-84 burns bros truck stop,I prefer, pacific recycling on emerald is $4, north of horseshoe bend s. Bound hwy 55 there is a free scale.)
I live down the street from the the OP
The left front shock is blown for sure I can/could wiggle the top in its mount.
I recommend having Boise spring works either rebuild those springs or build new ones to be 2" higher (level), have them put shocks on (F+R), check for working order of the shackles, etc., and do the neccessary maintenance items.
did you mention how much you picked this up for?