Well, after putting on and taking off the rear tire a bunch of times I ended up damaging the bead, so I had to order a new tire. Went ahead and got some new tubes also while I was at it. I'll let a local tire shop put the new tire on. Those Gazelles are tough.
I went ahead and put on my pipe and new air filter and upjetted my carb. My stock jet was a 52 so I tossed a 64 in there, based on a spreadsheet I read of similar mods. Once I get my new tire on so I can ride it, I'll tune it and get the right jet in there. Then I'll focus on everything else I need to get it tuned and running right. Also put an LED tail light bulb in there, it's a big improvement. Pics to come once I get the new rear tire.