ifoo ,
well itna time or interest kon lay k videos banaie jien.. mostly focus bike bananay or bhaganay men hota hai.. ye tu akhree lamhay men yad ajaye k pics banani hain tu bana letay hain werna aksar tu wo bhi nahi ban paatien..
rahay apky questions tu wo men answer ker deta hon#
1 - no, though there is a legal procedure for that any one interested can get it done with almost no effort
2 - relaible = yes damage = no
3 - Econo = yes
4 - A week or more, (supervised swaps are always good) as all I can do is that I can find u an engine and tell you the mechnics who can do it.
Hope that helps.