Traditional lenders will almost always offer better rates so it is usually best to go that route if possible.

It is best if used and payed off in a shorter period, rather than holding debt for years.Another option you have is to take out a traditional loan for what is needed to payoff your debt then open a LOC on the remaining equity.

The seller/lender Should set this up with a serving co. and escrow taxes/insurance just like a traditional lender.

Larger box spaces tend to take longer to lease out as bigger companies are slower to move and rent is typically higher compared to a larger pool of smaller tenants going for the regular type spaces.National tenants tend to want brand new buildings with higher ceilings for storage and shipping.

I believe that once the home is moved I could refinance through a traditional lender which should be easier once the home is moved and sitting on a ton of equity. 

Here's some safe advice, Stay Local and join your REIAs and Meetup groups.........much, much, less expensive training(compared to Gurus) with much better content.Sorry for the long post but needed to comment on my disastrous experience.

When I lend, I typically am getting a few interest rate points over traditional financing, but lower than what the borrower would get from a hard money lender. 

Calgary is softening up on some of the housing prices but won't be comparable to the success you have enjoyed in the states. 

I'm not getting good comparative search results so maybe someone with more Google-fu could provide some better search queries.

I found them to be very reasonably priced compared to many others I quoted.