lol it's not too much work. my advice is check with a local muffler shop... it was $100 to do 2.5" cat-back exhaust and $160 or $260 (pretty sure $160) for the magnaflow muffler installed. so cost wise you're looking at like $260 or $360 plus tips and maybe 2 y-pipes. so in total like $450 to $600 for everything (price varies by place and type of muffler and tips).
you wont be able to use your current exhaust so after selling that, it should pay for most of it.
as far as work goes, get some tips and measure them (with a little gap in between each tip) and you'll know how much room you'll need for the tips and just take a saw to it and cut. for a really nice look you could take it to a body shop and have them put the fins back on and paint it (since 2010+ have color matched rear diffusers).
keep us updated if you decide to go through with it
