Yeah, seriously, everything. The only things to maybe skip are Savi’s and building a droid, depending on your finances and interests. Anyone can go in the droid store to shop; the build area can be seen from the store.
Savi’s can only be seen by those building and their one guest. Whether it’s worth the high cost is subjective. I’ve read many times that the experience is amazing but the quality of the lightsabers is not very high- lights go out, noises when it should be silent, stays on, hard to get to the battery on some hilts, etc. Definitely can’t have any mock fights with them.
But everything else other than Oga’s is free to take in. Don’t forget to play on the datapad after you’ve taken everything in. It’s loads of fun.