Finally finished this. Took a bit for the parts to come in. Sorry for all the text here, didn't take as many photos as the tear-down because I was excited to get it back together. Feel free to just look at photos if that's your thing
Salt sprocket and adapter.

Here's the crank minus the bearings, middle spacer, and US to Euro 'conversion' cups.

Put the cups in, then the bearings. One side cup was very hard to get in. Also I forgot to put the spacer in so I had to take one side out again (beer may or may not have been a factor ), fortunately the opposite side was fairly easy to tap back out. Put spacer in and pressed it all back together.
BB in with spindle.

Used a caliper to measure the distance from inside crank arm pedal boss to frame so I could see how aligned they were, I only needed one of the small spacers on the non-drive side to get them within half a mm (I believe the thin spacer was 1.5mm, photo above you can see they supplied 2 thinner spacers and 2 thicker).
Chain Setup:
Had to ditch my Redline chain tensioners unfortunately. For the Shadow Interlock chain I lined up my old one with it to get as close as possible for length. Broke it to length and it would have been VERY tight with the rear wheel slammed. I added one link and it fit good, but with how the chain tensioner is setup it was exactly between the two axle set points and would not fit. If the adjustment bolts on them were about 5mm longer they would have worked in the front position. Oh well, was able to jam a screwdriver handle between the tire and frame and get the wheel square and the chain tight.
Brakes:
The brakes weren't TOO much of a pita to setup. Hardest part was getting the cable ends into position without them moving when trying to tighten them down. They had pre-applied loctite on them so the allen didn't spin very easy. Somewhat helped to get the arm position close without spring tension applied first, then preload the springs and tighten it down. I adjusted the pads with no toe-in to the rim, and was able to get both side pads to touch the rim at the same time. I must say this is the best (bmx) brake system I've ridden, very responsive. The pads that came with the system are a little harder durometer, no squeal besides the first few times trying to bed them.
Seat:
Love this thing, shape feels better than the stock one and the pivotal looks much cleaner. Wish they would have at least told you the key size to install it (had to google it) though. Does anyone have photos of these things taken apart? I was under the impression this whole time it was just a bolt riding inside a curved ramp but seems to be more than that. If the bolt snaps/strips on are you screwed with these?
Also found some 'classic' Haro stickers on ebay, I think they're just reprints but still cool. Wish the one for the headtube was a little smaller though.






Had fun on my short ride today, been a few years since I really rode a bmx. I'm absolutely terrible on it but been out of work with this virus thing and watching Scotty's Youtube kind of inspired me to start riding again.