Immigration Trust Fund

I am trying to understand some details on canadian immigration trust funds. My current broad understanding is that immigrants can establish a trust fund for assets held offshore which will be free of canadian taxes for a period of 5 yrs, providing certain criteria are met. Does anyone know (a) what approx costs of establishing / running those trusts are - whats the breakeven as it were ? (b) can one pull in some of the assets during the first 5 years if needs be - understanding they will be taxed once brought into country (for ex if I have 1m cad$ in trust but decide in yr 3 of the 5 to pull 500k$ into canada to say buy a house. is that possible or do I have to leave the 1m$ in for the full 5 yrs) ?

Any particular reason to post five unrelated questions at the same time?