Get the swift.
But if it were me, I would save for a higher downpayment to lessen interest cost. Just imagine paying 500,000 interest in five years.
Just to illustrate:
say save for 12 months: 18,000 * 12 = 216,000 + 60,000 = 276,000 for downpayment next year.
Assuming that the swift would cost 740K by that time, You can pay maybe 40%(296K) so that leaves you with around 440K for financing at lets say 38% in a 5 year loan.
If you calculate, your total payments would have been: 296K + 440K +(440K * .38) = 900K approximately.
That is a savings in interest of 150K. Savings would be bigger if you can negotiate for lower interest rates.