If you get an 802 be sure to get Marti Brown's Icom 802 Manual for IdiYachts
Actually I have had my IC-M802 for 5+ years now and it is a great radio. The manual is very poor. As a result I have been helping/training other cruisers in every port as to how to operate the 802, 710, and even the minimal capable 700Pro.
Since I had good background in writing procedures, Cruising, Marine radios, and have been working with communications equipment since 1966 I re-wrote the manual. (General Class FCC License and a Ham Extra)
My manual, "Icom IC – M802 Made Simple for Cruisers" will be available at Amazon toward the end of the month.
It is easy as an Electrical Engineer to assume a lot of knowledge by the user. I taught electronics for a couple of years. My students beat me into submission as to how to and not to write procedures for non engineers.
My goal for the manual was to not skip over steps and provide a manual simple enough that even my wife could follow. (She is confused by cell phone operation.) I have one more walk through the procedures and it will be finalized.
One of the other cruisers here in La Paz (One of the cruisers that has helped me test DSC functions) tells me he has a copy of the manual you referenced and he is not impressed. He will be helping me with the final review of mine, so I hope he will like my manual.