I have a Saito 72 in my Harrier and it works well. The 82 will be even better for vertical though even though the 72 will pull vertically from prop hang it would certainly be more polished with the 82
I also had a flip but IMO the Harrier is easier to fly (maybe because of the fuselage length/wing span ratio).

The standard covering for the Harrier makes it a bit difficult to read when flying up high so I remedied this with some stick on shapes under the wings.
Like most Seagull ARF's, I found that using the recommended settings for CofG and control throws worked very well as a starting point, I have moved the CofG towards the rear of the recommended setting and it will now prop hang all day. I also use the two elevator servos to my advantage - I set up the "Ailevator" function (Optic 6 Tx) and have now got amazing roll characteristics - especially on high rates