For the bumper situation, most people will tell you not to take them off. And they are right, but some of us are willing to take the risk of not having them.
For my blinkers/running lights I made some brackets and mounted them behind the two lower grilles. However I have no A/C so with out the condenser it freed up a decent amount of space between the rad and the two little grilles. If you still have your A/C this wont work. But it's quite neat because they are hidden until you turn them on.
My previous set up was two 1990 Jeep Wrangler blinker housings and some new sockets to fit them and I put them right in the holes for my bumpers. I had to shave the edges of the lights down a bit, but once I did that there was no issues getting the housing in and out to change bulbs. And they fit nicely in those holes, they take up nearly the whole space.
But I like my new setup behind the grilles better much much cleaner.
Also you can buy 7" round lights with blinkers in them like this:
And for good oem parts I would say
I usually buy from these two places. They are both reasonably priced, but can be more expensive at times. Especially MK1 Autohaus. It's worth it though because the parts you get are the real deal for the most part. At least that's what I've found so far.