The easiest and, in my opinion, the most attractive way to finish a "flamed" wood is with clear coats of semi-gloss lacquer. The trick is to properly sand the wood. I hope this body is unfinished to begin with and uncontaminated with other finishes. Anywho... Block sand the body through all the proper grits; 120, 180, 240, 320. By the time you hit 320 the flame should pop on it's own. I like to seal with a coat or two of shellac. Burnish the sealer coat with some 0000 steel wool. Top coat with two or three coats of a semi-gloss lacquer. Both the shellac and lacquer come in aerosol cans. I like the WATCO lacquer. If you are finishing for the first time, this will work great. Since it is semi-gloss because you don't need to rub it with a compound. Tung oil is...a commitment. It looks nice but it takes awhile for the oil to polymerize. It smells funny and can provide some problems if you change your mind at some later point, like if you want to stain. For a first time finisher, don't monkey with stains unless you are willing to accept screwing up. Once you apply stain to a figured wood, there is no turning back. It soaks down and will require a great deal of sanding to remove the color. If you haven't sanded properly, stain will make every scratch pop. But if your heart is set on applying a stain, get yrself some alcohol soluble aniline dye. You can get it in the purple you are looking for. Carefully apply it after you have sanded to 320. Apply the shellac/lacquer spray and you will be happy with the results if you don't rush the process. What can help is if you apply a very dilluted stain to the wood before you sand, it will show all the scratches you missed. But if you stick with the clear, it will all work great.