EVO-ALL does not support the new data protocol for the Directed Smartstart. EVO-ONE has a firmware available for it though.
EVO-ONE will do full 2 way start and alarm (need to enable the alarm feature 14.2 for alarm and remote start)
https://cdn02.fortin.ca/download/87531/directed-dsm550-install-guide-87531.pdf
Would it be as simple as unplugging the evo-all and plugging in the evo-one?
Nothing major to change. Most of the harness will be the same but door lock control and parking lights output are different between the evo-all and evo-one.
-- door locks need to change to purple and purple/white. (door lock control)
-- PINK needs to be tied into brown/white. (parking light control)
-- Driver door pin will be the DARK BLUE
https://cdn02.fortin.ca/download/80811/evo-one_ig_thr_bi_nis1_ex35_2008-2012_pts_a_80811.pdf