It's Cool.
I will take off all the gold. Then look for silver replacements.
Here is what you want to know:
I purchased my LC and it had the Gold treatment. Every badge had been plated gold, which I did not care for. So I thought, no big deal, they are just glued or screwed on. So I went down to the Toyota dealer and bought all new chrome badging for about $150. Not bad.
Got home and swapped the front grill badge. Easy, just three screws. The back though, that took a good three hours. I had the rear of the vehicle facing the sun to warm the glue, plus a hair dryer. I used dental floss ( I read about it in a thread here) to cut between the glue and the paint without damaging the paint. That took about 40 minutes alone to remove the badges.
The hard part was cleaning the foamy mess of glue that was left behind. So it took about two bottles of Disolve-it ( a citrus-based cleaner/degummer) and another two hours of sweat to rub/disolve the glue. Then 10 minutes to use a cleaner/wax on the lift gate prior to applying the new badges. Luckily, there was still enough ghosting/fade to re-apply the stickers in the exact same spot (yours maybe tricker). So yes it was worth it for me, but it took alot of time. Not to mention that terrible feeling during the de-gumming process that you might have just really screwed up the paint.
I have since come to understand it would have been best to just use a cleaner, without wax for best badge adhesion, then apply a good wax.
All that being said, I would just keep the Lexus badging if that is what you buy/bought. When it comes time to resell it, you either have to reverse the operation, another $150 or so, or you might feel silly explaining to the potential buyer why you changed the badging to begin with.
The key is to do this without asking permission here. Just post that you did it, you like, and that is all there is to it.
Next take off the grandma steps, add 285's unless your doing a lift, and you probably don't need the lift unless you are going to be doing some of the more extreme wheeling done by those here. Same can be said for front and rear bumpers. If you get a those you'll need the lift to offset the added weight they add. Then you might as well get 295s or bigger.
I think every mod beyond the 285s and removing the grandma steps really begets more and pricer mods that add tons of functionality to rigs featured on this site, you have already heard functionality is important around here.
Check this thread out by Noah to see what your rig will look like:
https://forum.ih8mud.com/showthread.php?t=145122
Enjoy