Back before you were born, I looked at a year, almost 2 year old 88 Mustang GT. Monthly payment around 200, but insurance was going to be $338, a month. and this in 1990. Like mentioned, a lot of factors go into it, your age, the car, where you live, etc. Shop around, but I have a feeling it is going to be sky high no matter whom you insure with.
2013 GT 6 spd, GT500 mufflers, BOSS quad exhaust, Roush CAI, Barton shifter & 2 post bracket
CS GT-40 Wheels, Hotchkis sway bars, upper and lower control arms, springs (1.1/1.6 drop) and adj panhard bar KONI yellow struts and shocks J&M caster/camber plates,
BMR Upper control arm mount and lower control arm brackets.