Hi Melinda!
I read along your post since I had the same problems with my DS2. V also had these multiple NWs (up every hr or so) for 2 wks as he turned 6 mo. As I figured it out, it was more than one factor that caused it - a huge GS (starting to move around, roll etc), reflux flare up and maybe even teething (though he has no teeth yet)...

If your DS2 is sick, that's one factor for sure, but at 6 mo you have to consider the GS as well. IMO if the NWs don't stop after a few days or after the illness, then you can start thinking about props and routine...
In those 2 wks, when we had NWs, I really had no energy to deal with other issues, I just tried to get him to sleep - and I rocked him even at night, so as to make him sleep...

As for paci - my DS1 was addicted and it was his lovey/comfort item. We had some rough nights until he learned to replug, and then when he got older we had some rules as to when he can have it (like he went to sleep/nap with it, or he could have it only in the crib). We weaned it at 3 yo, and luckily had no probs with it, nor with his teeth. For me it was a life saver, as he was a very bad sleeper... Now DS2 takes it only rarely, when he has a (what I call) sucking fit and he's not dependent on it....I think it's your call to decide what you'll do with it.

As for independent sleep - V was rocked at each nap/BT because of his reflux (here I couldn't get it medicated, so dr's orders were to hold him for sleep! ). I taught him independent sleep once his reflux got milder, but as DS1 was around, I could do it mostly in the mornings when DS1 was in kindergarten. It's amazing how quickly he learnt what to expect for each nap! Now he's re-learning independent sleep. After those 2 wks I had to start over again... but he's getting the hang of it more quickly now!
IMO it's OK to focus on BT only, if that's what suits you. He'll quickly learn to new rules if you're consistent with it!
HTH