a 19 year old swaping engines :s --- why not get an idea from you Dad, Brother for what to do as they were the ones who bought it, so they will know better for what to do with it.
Hope you do not take this as an offence.
As per my opinion: I will say get it repaired from a Toyota guys this way there will be less hassle plus it will be economical.
And Prado in Cities is only for Bling bling work,,,, so why getting into hassle