in need of some IDEA's ... 1989 marathon

[struckby29]

ok guys and ladies hook me up with some ideas for my murdered out monster. i recently bought my new cart and it was a good bang for the buck.. over the winter i wana do a full over haul on it ..

cart sits as of now with the following

has a homemade looking lift dont know how big
head unit with 2 speakers sounds ok
ghetto rear seats
stock wheels with atv tires
the loudest and slowest motor w/ a clutch that grabs out of no where
horn/ lights/break lights

things im thinking of doing
new wheels and tires..
nice rear seats
get it wrapped or painted or something

I NEED TO DO SOMETHING ABOUT THE WEED WACKER 2 STROKE ENGINE
so i guess any ideas would be amazing.. what motor should i put in it? another 2 stroke?
put a 450f motor in it? need some ideas of something easy enough but getting something done at the same time .. i mean i wan shoot myself listening to this thing..