I would only go with 27 inch with the stock motor you can get a 29 under it but with 14 inch rims only one tire is available at 28 inches tall and that is the bfg all terrain anyways um for a 4 inch install will be 450 I do not charge to install but it will take 2 days to install with a 6 inch it will be 600 anything else let me know
Mike