Yes, your account will still be good - assuming they still have the records as of the transition. You'll have to contact them first though so they can activate you in the system.
I won't discuss Wishon pricing in public (keeping with their requests), but the new driver head is about $4 more than the 919THI if that gives you any reference.
Shipping
Purchase <$100, shipping is $30
$100 to $299, shipping $20
$300 to $499, shipping $10
Over $500, free shipping