We don't offer low quality FRP.
The way you COULD do this to meet your budget is not do the side skirts.
And there is no possibly way to paint your parts AND purchase all of them for $1300, I'm sorry.
If I was you, I'd do our body kit, then do that exhaust on eBay, if it's not what you want, (exhaust wise) then you can always just sell it back out or return it. Body kits are different because once you paint them, they are yours.