A Couple of Questions

[Hugsplox]

Welcome to the forums Garf, congrats on getting your first BP.

To answer some of your questions, as far as not finding much poop, this really depends on the size of your snake and the size of your feeders. Younger rats are more digestible so you'll see less waste, and as your snake grows and starts eating larger feeders, you'll see more waste. So no worries here.

As far as shedding, there's estimated times but these snakes are on their own schedules. Once my guy goes into blue he's typically shed within 6-8 days, but he's gone quicker, and he's gone longer. I typically don't feed during shed, as I had a bad shed when I first brought him home, and got some good advice here not to feed, so I stopped. I haven't had any other shed issues so I've stuck to that. I would keep an eye on your humidity, and check all your hides, it's possible that he's already shed and it's balled up in a hide or under a bit of substrate.

As far as your last question this is kind of open for debate. I think most keepers will tell you not to move too quickly when you're talking about upgrades. You don't want to put a smaller BP in a massive enclosure, but you can do it if you have plenty of hides, plenty of cover, things like fake plants etc etc. MOST PVC enclosures you can also order with a divider, so you could order one, put the divider in, and just use half of it until your guy gets bigger, which would open up your other enclosure for another snake. OR if I were you, considering how long it takes to get PVC enclosures, if you're able to I would go ahead and order to 4x2s, and just divide one for both snakes (after quarantine of course) until they're both big enough to use the full enclosure.