the problem i'm going to run into in building android from scratch is the build environment. i could use the chromebook with an external drive, but it's going to take a long time to do it, and it's not really what the device is for - it's a 1.5 ghz dual core with 4 gb of ram and 16 gb of ssd storage space on hand.
the access point and main pc are both running windows, and both have 4 gb of ram.
the broken laptop will eventually be a better choice, but i'm not planning on loading linux on it. unless maybe i am. i dunno.
the new pc, still unbuilt, is probably the better choice for the task. it's an excuse to set up a linux partition, actually.
but, i don't want to spend the time on this right now. eventually.
so, i'm going to flash it with a custom rom from the chromebook for just right now. i know - it's not what i want to do, but the process to do what i want to do is just too time consuming, for right now, considering that i'm not expecting to actually use the device very often, and the real point of this is just to get the proprietary software off of it so it stops spying on me.