For loop with custom order
You have a few options here:


Use an Entries field (as a Global or as a fields on a Single maybe?) to chose the entries and order them
Make the Entries a Structure section, so you can set the order
use craft.entries({ ids: [3, 1, 2], fixedOrder: true }) and query the Entries by ID (if they'll never be deleted and you're cool with hard-coding the order)
create an order field on that entry type to query them by, also with craft.entries()


It's up to you what the best solution would be, given your set-up, but you have plenty of options.