for people who don't mind damaged sentai collector edition sets there is a few I've found Rightstuf selling on Amazon marketplace. Remember these sets are damaged in one way, or another. Please read how they are damaged before you purchase so you know exactly what you are buying.
I'm posting these incase anyone who doesn't mind damage wants to get a decent deal.
Amagi Brilliant Park
[Sentai CE] - $49.99 + shipping (It's around £52)
Good condition. Artbox has a few corners that are dented with some tearing or other scratches, otherwise very good. Light shelf wear. No markings/highlighting inside. All extras are still present inside. Ajin
[Sentai CE] - $39.99 + shipping (should be around £40)
Acceptable condition. Slipcase has been gouged on one side, but the trauma only left a mild dent in the back cover of the graphic novel. A great deal for the blu-ray and DVD sets.
My Love Story [Sentai CE] - $29.99 + shipping (around £30)
Acceptable condition. Significant tears or other damage to artbox, might as well throw it out and keep the discs and extras at this great price! Box for extras may be creased and wrinkled due to the shrink wrap being too tight.My Love Story [Sentai CE] - $79.99 + shipping (around £80)
New item with slight damage to cardboard slipcase. Damage consists of small dents or abrasions on the corners of the slipcase. Still in the manufacturers original shrink-wrap, all the collectable extras of this box set are still inside.High School of The Dead [Sentai CE] - $29.99 + shipping (around £30)
Acceptable condition. Slipcase is torn and dented across the top edge of the spine, otherwise good condition. Still in original manufacturer's shrink wrap, never been opened.