my question is what prep do I need to have done... I don't have an oven large enough for the parts, they have been pulled for at least 1 month and left in the house but will have only seen 20deg... is this enough.

             I did some Clio front wings a few months back and had them painted at my local body shop. The problem was that the 2k paint they used required baking at 50 degrees. This caused the Epoxy resin to soften and the wings lost their shape. (lesson learned) Luckily we put the wings back in their moulds with some house bricks for weight and re baked them at 60 degrees and they returned to their original shape. So my advise would be get them in the spraybooth/oven in the moulds and bake them at a higher temperature than that required for the paint finish "before" you paint them.