Advice Sought LON-YVR

Greetings people - advice would be appreciated on best way of routing the above some time in January for a week. My requirements in a perfect world...
Flying Directly
===============
1
---------------
Fly Business
Earn BMI points
Upgrade from lower fare using miles
2
---------------
Fly Business
Use BMI Points (have enough for the 1.5 or 2x multiplier)
Flying Indirectly
=================
Plenty of BA and VS points so could do as pure reward but happy to pay PE and upgrade
Thanks in advance for your creativity
Flying Directly
===============
1
---------------
Fly Business
Earn BMI points
Upgrade from lower fare using miles
2
---------------
Fly Business
Use BMI Points (have enough for the 1.5 or 2x multiplier)
Flying Indirectly
=================
Plenty of BA and VS points so could do as pure reward but happy to pay PE and upgrade
Thanks in advance for your creativity
