I have had all of those you listed except the top cap. All are good kits to build. If you ARF-it then its gonna be heavier than if you build it. I personally think the Knife kit or P.T. kit are the easiest to build because of the straight wing. Morris has alot of good hardware in there kits, Lanier has no hardware cept the LG. I have built a ton of P.T.'s. Most from scratch.