That's like a strat I'd use back in the 90's! Lol. I've actually t10'd with it believe it or not.
If you go Indy, stay Indy. Otherwise go TTR and stay TTR.
That strat wouldn't work in the here an now. Indy is still a great starter, but now with the new building cost adjustment, changing building types in mid set will bankrupt you... Let alone doing it twice. I still wouldn't have done that last set either.
Just stick to Indy from the beginning or techer from the beginning. Going MBR will cost you too much to change your buildings with the new formula implemented this round.