Looking for a program for a "rendering"

I have seen a handful of guys wrap the roof of their tacoma and I like that look but am wanting to try and get an idea of what it would look like if i were to wrap the roof as well as the A pillar and the top portion of the doors around the windows black too. I've googled and tried combing through here but can't find anyone that has done it quite like i am picturing. Any input on a program, ideally free or cheap, to help me change the color of a few portions of a picture of my truck would be appreciated!

I am going to attach what will appear to be a drawing from a blind 4 year old so you understand the issue i am running into. Will not be putting "artist" down on my resume any time soon. Just want something a little less half assed before i commit to it.

 

Last attachment didn't work, so here is the masterpiece.

 

Do it. I can picture it and looks good.

 

Someone here might be able to help you
https://www.tacomaworld.com/threads/photoshop-request-thread.17542/

 

Post up a couple of actual photos of your truck from different angles (including preferably one from a slightly elevated angle - might have to climb a ladder or something) and post them here. I'll Photoshop the images to show what it would look like and repost them.

 

that would be sweet! I’ll get those as soon as I can