There's no way in hell that the Blue Jays would even give up half of that. Blue Jays fans would not go bananas over a 1 year rental of Harper added to a team that lost the division by 17 games last year. They would probably think that their GM has lost their mind.
To even break even above Harper's 21 million salary, they'd have to sell in excess of 6000 seats per game over what they'd have done without him. I can't see anything close to that happening.
1 year of Harper is probably worth more, both financially and on the field, to the Nationals than he is to anyone else.
Bautista and his 15 mil are off the books so they add 6 mil in salary for Harper. Bid deal.
Sanchez and Happ were out most of the year as was Tulo and Donaldson. If they were healthy there is no way they lose that division by 17 games.
They have Sanchez, Stroman, Happ and Estrada. Donaldson, Smoak, Tulo, Morales, Pillar, Martin and Goins. They need some relievers but that is a very good team. They are one of the teams that if they added Harper would take them over the top IMO.
I think you are underestimating the fan base this team has in Canada. They keep their top 4 prospects and give up a young closer who struggled at times last year and 5th, 8th and 11th best prospects.
This is a deal that I think the Jays and their ownership group Rogers would jump all over.