I know my hull weighs 900#, 90 horse 2 stroke about 300#, 44#'s for the kicker, trailer about 500#, 3 batteries close to 200# and 18 gallons of fuel about 110# and add about 60#'s or so for the bow mount TM.
That works out to 2114#'s. You're going to add 100#'s pounds for a 4 stroke either 90 or 115 HP which will bring you up to 2214#'s (on my boat at least). This still leaves almost 300# for gear before you hit 2500#'s.
This is my 18 foot Fisher.