If you broke a connecting rod, there is a real chance the crankshaft is bent due to the uneven load and/or the pounding of the broken rod on internal surfaces of the crankcase.
A bent crank cannot generally be straightened by grinding sufficiently to insure the journals can be ground true again. The crankshaft is trashed.
Once you factor in a new crank into your build costs, its pretty easy to see that a new (reman) engine, or at least a new (reman) "short block" is your best bet.
1992 XJ 2" lift -- RIP
2000 XJ 3" lift -- Australian Ford Big Brakes up front, rock rails, ZJ rear discs (with WORKING parking brake), C4x4 rear bumper/tire carrier, Hella H4 headlights, IPF driving lights, OEM skid plates, OME springs/shocks, JKS LCA's, JKS Sway Bar links.