New - Farm Buggy!

Hi,
I have begun the journey of the farm buggy, going to be used solely for spotlighting. This is what I have started with...



and this is what I want it to eventually look like! (without the rail gun of course)



have started searching for parts but if anyone has suggestions feel free to let me know!!

hey you have to have a dummy gun or supersoaker on the roof that would be sooo funny!!🥷