Heartily recommend the donationware versions - fantastic. Alpha Bleu Ciel's model is excellent - focusing on the F4U-7 (French) version. Upward-angled engine mount, chin intake, and pilot with later bone-dome helmet give you a very authentic -7 rendition. A few repaints for it, too.
Depends on what era you like. The Donationware covers the early period well (starting with the -1 birdcage models)
Good luck!
dl