Not gonna lie, I try to buy all my motors second hand nowadays, because it’s just so much cheaper than new.
But if I were you, I’d get in on the Flipsky 6374 groupbuy that’s happening:
P.S. nexusboards.co.uk has Boa wheels as well, but way cheaper than sickboards. People seem to like them; I haven’t tested the set I bought yet tho.
P.P.S. When I bought from Haggy I only had to pay a few $ in import fees 
P.P.P.S. I hope you’re aware Switchblade decks get wheelbite unless top mounted / extended mounting holes / DKP trucks / small wheels.