No you can't send both passports. Send a cse to cpc Ottawa about your spouse situation and they will arrange visa stamping at local visa office in Bangladesh.
If you are trying to shorten the processing time by getting not eligible for fsw , that's not the case with pnp EE. Pnp cec and pnp fsw processing time is same for inland applicants.
Everybody got pof in checklist. You can add lOE in that upload section. You don't need to show any funds as long as you are eligible for CEC but pof should not be a requirement by nominating province.