OK! So here you go!
First four slots.
First slot - initial arrival at Scrap's.
Second slot - Fixed Rooter.
Third slot - Got two meteorites, pole and hover board.
Fourth slot - Confirmed able to access crane (hover board and pole are on the ground)
Viewing post in Save games collection
You can still save. When it says the scene is too complex, that should just mean it's going to save at the "start" of that area. So for example, say you land in an icy region. And you do a bunch of things in this icy region. Then you hit save. It will say it's too complex. So if you restore from that save, it's going to disregard everything you did (on the icy region) and taking you back as if you just landed at that icy region.