These components are available for around $100 used on international forums. Even if they are for $250 that is not high end category, let alone 'best ever components'. Your components along with Infinity Kappas can be classified as lower-mid end components at best. Some of the best ever components include Focal Utopia ($4,000), Morel Supremo ($2,000-$3,000), Rainbow Platinum ($3500). Then best Amplifiers also includes names such as Audison Thesis ($5000+ if I remember correctly), Tru, Mosconi, Adcom etc.
'Budget being not an issue' is a restrictive term. If you can give a figure you would get better suggestions. If its really not an issue then choose either Utopia or Supremo, get a Morel Ultimo sub, Audison Thesis Amp, Alpine H800 processor, Alpine 910 HU, Stinger wiring