I'm incredibly confused about the transportation.

Please excuse me for being so. I'm not a Disney veteran by a long shot, so even regularly scheduled transportation has me scratching my head! Lol
In a nutshell, can anyone spell out the exact form and timing of transportation in getting from the Poly to MK and EP, while the monorail is out of service, especially for both RD (8:20 arrival) and for early morning ADRs (7:45 entry into the park, so I'm told)?
Eg.

Bus - starting at what time?, running every ? mins, time of last run of the night time, etc.

Small Poly boat? - Same questions...
Is there anyone at the Poly now who can shed some light? This might be premature, for me personally, because I'm not arriving till mid-August, but I'd rather be prepared in the event things are delayed (as we know can happen).
Pity, staying at a monorail resort partly for the ease in getting to the two monorail resorts and then having to take busses.

Oh well, it is what it is. I just have to say, I really, really dislike the bus option for MK. The smaller Poly boat would be perfect

, but I'd like to know if and when they're running (early).
@dansdad, you're very well-versed in all things Disney. Is it typical for busses to run for Poly guests when the monorail is down? Is there an actual schedule posted on Polynesian property (or anywhere else...the web?) with the specific running schedule? I guess I'm just "concerned" because I'm a planner and I like to know things like when I have to get up in the mornings, therefore when I need to bed down for the night...kinda cycular, you know?
TIA!