Wing and antenna removal and fill
 

Just removed my rx7 s5 stock spoiler and used some plugs just to close up the holes temporarily. I want a more permanent solution to plug them up what would you guys recommend? Also how hard is it to remove the antenna?

The antenna isn't hard to remove just akward.
As far as the permanent covering of the antenna hole, a body shop would be able to do this for $100-$200 as there isn't that much work to be done.

Size the sheet metal to fit the hole, shape or, take weld in place, grind welds smooth, body filler/primer, sand area smooth with the rest of the body, and respray the area needed with body color and clear. Let it dry if it wasn't baked, wet sand and and done.

It sounds like a lot and it kind of is, but if you have experience it's not a lot of work. Dents and flattened panels are harder then a antenna hole cover up.

Alright thank you! I thought I would have to do something like that and since I don't really have the experience or the tools i'll just take it to a body shop. Thanks for the help though.

At any modern shop with any expectation of quality work, $100 to $200 will cover materials. At least double that for labor...probably more.