You need factory brackets. Chop all those brackets off and put the factory ones on. A couple companies sell the factory brackets, I think around $400, then have them all welded back on, couple hundred more. You'd be into it for close to $700-800 when all is said and done.
I have found the bracketry, Looks like ARTEC has a rear lower control arm mount with skid for $99 and their perches are $70
I can grind it smooth, but I'm without a welder so I'll have to pay to have it welded on. I've got $350 in the axle so I'll end up somewhere close to your estimate, maybe a hair less. I've got a JKU sitting on 35" trail grapplers and a TF budget boost with shock extensions, rubi rockers. I've got a Rubi take off D44 in the garage with RCVs, Reids, EVO Raised TB, Synergy DL, Synergy BJs, Synergy sleeves, EVO Skids & Gussets, 4.88s, and rubi locker. I'm trying to set myself up for EJS weekend in March and I'm on a 3k budget, this axle was supposed to be a cheap way for me to complete other jeep projects prior to completely rebuilding my stock rear axle. I have no OBA but I do CO2. My options are.
Option A: Grind off brackets, install ARTEC LCA mounts and Perches, $700.00 to include price of spare axle with 4.88s installed by EVO. Sell 3.21 factory axle assembly with Rock Star Skids for a couple hundred (possibly just part out shafts and skids). TOTAL Cost around $400-500 spend remaining budget on full lift RK 3.5 X Factor, Rock Hard Skids (tranny, transfer, gas tank and evap relocation), 1310 Front DS. Benefits of this are stronger LCA mounts and no spring bowing with new perches.
Option B: Return axle, have rear end regeared to 4.88 and have 35 spline ARB, Chromo shafts installed & duel ARB compressor. Delay everything else but skids. Total would be $350 cash back for the rear axle, cost of $2800 to rebuild mine TOTAL:2450 Spend remainder on Skids. **DL flip/Reid fitment issues**
The biggest problem I'm having with my budget is the Rubi front axle I purchased already has reids and DL flip set up which won't fit with my budget boost. So if I do option B I'll most likely have to go over my budget or end up with two sweet axles and no cash to buy the lift necessary to install them. Of course I know I can do MOAB without all this, just seems crazy to spend all this money and not get to use it on our trip.
This is the front axle, found it locally for $2500