There is a Guam side letter to the contract that you should be able to get your hands on once you have a firm date for training. I left CMI in November of 2005, but IRIC there was a housing type bonus of about $1000 per month. This may have changed with the last contract, but it was pretty consistent with the side letter from 1996 through 2005.

There is some 3 man flying in Guam, but that will probably go senior, so you will most likely be bound by the 32/7 Flag Rules. Most of the Japan flying will block between 7 and 8 hours for a round trip. GUM-MNL-GUM would be about the same. So a junior lineholder will be working 4 day sequences (not 4 days away from base, but 4 round trips in four days). There are some shorter trips that almost always go to reserves, GUM-ROR-GUM which usually blocks less than 4 hours round trip.

In my opinion, the GUM base will see significant impact from the NPRM regarding flight time. Most of the present 3 crew member flying will be able to be done by a two man crew. The Island Hopper will not survive in its current form if there are no changes to the NPRM. The total block time for GUM-TKK-PNI-KSA-KWA-MAJ-HNL is about 13 hours plus there is 2 hrs 30 minutes ground time planned which makes a 15 hour 30 minute duty day. There are no seats on the 737 that meet any of the rest facility requirements of the NPRM, so the flight as is will no longer be possible within the duty time requirements. One possible solution would be to stage crews at KSA. Alternatively, you could have different stops on different days of the week by cutting out one or two stops in either direction.