pecanme, feel free to pm me here. It took a while for me to get approved over there too.
I can tell you that a relay harness is a very wise upgrade. I'm running the H4 conversions and higher wattage Hella bulbs so for me the ceramic plugs were a must. Sounds like you had a similar issue as me. Before the conversion I was running around with high beams on and still barely seeing.
The wiring in these jeeps are only getting worse with time.
For those who don't know I'm making a harness to sell. When it's ready I'll post in the vendor section of both sites.
It'll have 12 gauge GXL load wire, 14 gauge GXL "trigger" wire, separate fused supply circuit for high and low, sealed Hella 40 amp relays, Delphi (Aptiv) terminals, sealed fuse holder with a spare fuse, ceramic connectors with quality Aptiv/Packard 59 terminals, splices only where 3-way is needed, etc. I refer to it as a "terminal to terminal" build
I'm still waiting for the right gauge terminals to come but I'm very happy with how it turned out.
Be careful what you see out there. As I stated in my thread on ifsja.org I purchased a harness on ebay and It felt so cheap because it was. The whole thing was 14 and 16 gauge wire. A headlamp terminal popped out and wouldn't stay in. They use 50 cent relays. Cheap ring terminals bent and deformed with little effort.
Also be mindful of the harness from "ksuspensionfab" that was mentioned in another post here that fast79chief started ... It's startling but I found the exact harness on ebay for about $10 free shipping. Down to the clear relays, same color wires, split ring terminals, fuse holder, etc.
Just another reason I'm making my own to sell. (see pics)