1995 Ford Bronco. Fan killed radiator. second

Sounds like a weak connection somewhere close to the battery.
The alternator should be able to keep up with the extra electrical load not to mention the storage capacity of the battery. So if the headlights are killing power to the key switch, something is weak between the battery and the key.
Could be a corroded cable, connection at the solenoid, or in the fuse box.

remove as followed :
1- upper trans cooler line.
2-upper radiator hose.
3-lower trans cooler line.
4-cooling fan electrical connection and retaining bolts .
5-coolig fan.
6-splash guard below lower radiator hose .
7-lower radiator hose from radiator.
8-condenser line retaining clip.
9- condenser to radiator bolts .
10-coolant tank small hose from the radiator .
11-radiator retaining bolts.
12-radiator ....
That's it. feel free to contact me I did this removal more than five times to your grand am type specifically .

The firing order on the 351 that came in the 1995 Bronco is: 1-3-7-2-6-5-4-8
The spark plug gap should be on the emissions sticker under your hood, usually on the radiator support. It may also be on the underside of the hood.
If you cannot find the sticker, try a .044 gap, if that doesn't work go a little higher to a .052.

If it will run then die and have to cool down for a while then will start up and repeat then replace the Ignition Module,

It sounds like your front hubs are worn out. Actually just 1 of them. You can put in 4 high or low pull it forward chock it raise the frnt wheels to see which one isnt locking by turning it. Most people just go ahead and buy new set of manual Waren lockers.

No but I would to prevent damaging the new radiator and ease of replacement

Oil Pan Removal

1. Remove the bolts attaching the fan shroud (8146) to the radiator (8005) and position the fan shroud over the fan assembly.
   
2. Raise vehicle.
   
3. Remove exhaust manifold-to-exhaust pipe.
   
4. Disconnect the oil cooler line at the left side of the radiator if equipped with an automatic transmission (7003).
   
5. Remove the nuts and lockwashers attaching the engine support insulators to the chassis bracket.
   
6. Drain the crankcase.
   
7. Loosen transmission mounting nuts.
   
8. Raise the engine (6007) and place wood blocks securely under the engine supports.
   
9. Remove the oil pan attaching bolts and lower the oil pan (6675) onto the crossmember.
   
10. Remove the oil pan from the vehicle.
    

sounds to me like the timing is off

if there is no plug then just pop off the lower radiator hose at the radiator. then the fluid will drain

The idle air control solenoid could be bad. give the engine a vacuum leak and see if that helps any