If you're trying to decide what type of clear coat you're going to use, then I'll make it simple for you. Use a 2k clear coat, they are the best when it comes to shine, durablity and application. Cheaper lacquer clears need buffing to bring out their true shine and even then still fail to look as good as the 2ks. The only time I would use lacquer is if it was on a very old car that was sprayed in lacquer to begin with so that the shines would match in the end resault. However if I was respraying the whole car I'd do it with 2k.
2k challenger clear and hardner 6L.(hardner not in picture) 2:1 mix ratio 10% thinners/reducer, spray with a 1.3 or 1.4 size nozzle. This 2k clear is very cheap at around $140 and there is more then enough for any size car. I personally have used and recommend this product.
2k metalux clear and hardner (hardner not in picture) 6L. 2:1 mix ratio 10% thinners/reducer, spray with a 1.3 or 1.4 size nozzle. This clear is of a more high quality compared to most other clear coat systems, it has very high gloss. I've heard of some people only spraying one coat when using this clear. I've done a bit of research and it turns out thats totally fine. However in my experience, two would be way more durable. I personally have used and recommend this product.