Even without gravitational slingshots, the simple solution would be to just take advantage of the oberth effect and do many, many successive burns, retrograde a

Even without gravitational slingshots, the simple solution would be to just take advantage of the oberth effect and do many, many successive burns, retrograde at aphelion and prograde at perihelion, until your perihelion is low enough to intersect the sun. It wouldn’t be crazily less delta-V but it would be appreciably lower. Another related fun fact from GP’s is that it’s way less delta-V to hit the sun from Pluto than it is from the Earth… 4.63 km/s according to wolfram: https://www.wolframalpha.com/input?i=hohmann+exit+delta+v%2C+Sun&assumption=%7B%22FS%22%7D+-%3E+%7B%7B%22HohmannExitDeltaV%22%2C+%22deltav2%22%7D%2C+%7B%22HohmannExitDeltaV%22%2C+%22r2%22%7D%2C+%7B%22HohmannExitDeltaV%22%2C+%22r1%22%7D%7D&assumption=%7B%22F%22%2C+%22HohmannExitDeltaV%22%2C+%22r2%22%7D+-%3E%2240+au%22&assumption=%7B%22F%22%2C+%22HohmannExitDeltaV%22%2C+%22r1%22%7D+-%3E%22695000000m%22 https://www.wolframalpha.com/input?i=hohmann+exit+delta+v%2C...