You need a cheaper parts store, and a master brake parts catalog. Some suggestions:
1) Split the rear lines at the rear crossmember and run them down the top of the lower links. Use a
1985 Plymouth Reliant K rear brake hose for the soft lines (8.25" of rubber hose, standard 3/8" flare at each end, less than $10 each). Use one per side from the crossmember to the links, hardline down the top of the links, and then a
1985 Chevy Chevette rear brake hose from the hardline to the calipers ($15.95, 15" long). Nothing mounted to the axle, and the rear is done for less than $60 with easily serviceable parts that are common at any parts store in the country. Less if the rear lines you've got already will work this way.
(I forget if you're running cutting brakes or not, but running the plumbing this way makes them an easy addition if you don't have them already)
2) Use the same Reliant K hose from a hardline to the upper link in the front, small length of hardline on the link, a
1982 Dodge W250 center front brake hose from the hardline down to the axle ($20 and solves the flex line and axle T in one shot). Hardlines from the T out towards each caliper, then use the softlines of your choice (mine are from the same truck, $18 each). Again, readily-available parts and you're into the front axle for less than $80.
3) I bought one 25' foot coil to do my whole XJ, have re-done some lines since then, and still have a bunch left.
4) Going through RockAuto instead of Napa to do the layout as above, the Reliant K hoses are $5 each, the front center Dodge hose is $13, left and right caliper lines are $10. So that bumps the price down to ~$50 for the rear and ~$60 for the front.
I haven't had any problems with this arrangement in two and a half years, but it's nice to know that if I ever do have an issue, it's easily solved with standard auto store parts instead of some specialty fittings.