Only on Kiwifarms, only here on a thread speculating about the post mortem existance of a Octegnerian mother and rape victim of a rather notable dumbass from a rellitively unnoticeable part of the United States, which might as well be on the moon in terms of it's real relavancy to me can you find someone doing back of the fag packet maths about launching Chris's mass into the sun with various Delta-V options speculated on.
I actually didn't do the math necessary to calculate the energy requirements, since the rocket equation is different for every vehicle. Also those numbers were assuming we're starting from LEO, and only factored in the Sun's gravity, it gets messier when you have to include atmospheric and gravity drag. You can save some delta-v with a direct escape, but the math is harder. Also I don't know how much Chris weighs now. Also I'm not that good at math.
As an aside, that's one of the reasons why space probes use direct escape normally if they can, if the launch vehicle has delta-v to spare. Using an ion drive changes the picture a bit if you want the most payload possible on your spacecraft -- instead you max out the launch vehicle to LEO and gradually orbit to escape velocity using the vastly more efficient low thrust electric drive (like an ion drive). In general no interplanetary probes do this -- but we're minimizing energy usage here.
Manned missions away from Earth (of which there've only been
still always start from LEO since it gives you a chance to come back immediately if you detect that something broke on launch. We don't care in the case of Chris, so we can treat the spacecraft as unmanned.
So if you wanted to yeet Chris as quickly as possible away from our star system, you'd want to use chemical rockets and do direct ascent with the largest available launch vehicle (currently SLS, but you can't buy that off-the-shelf, so Falcon Heavy), with a single gravity assist at Jupiter.
If you wanted to do it with the lowest possible energy budget, you'd want to only use chemical rockets to LEO, and have the last stage to be an ion drive (assuming there's a launch vehicle with the correct mass limits to make it economical) plus use gravity assists to give you free delta-v.
Unfortunately you might have to build a bespoke spacecraft bus to do it. As the largest ion-drive spacecraft, BepiColombo, while easily having enough budget to carry Chris to the needed delta-v, would have to also carry very large solar panels to function in higher orbits, or heavy radioisotope thermoelectric generators, within a timeframe of the lifespan of the spacecraft's systems (limiting the number of gravity assists in the inner solar system).
So, you might realistically still have to do a chemical direct ascent to do it, even with electric propulsion, and just minimize the direct ascent delta-v to as little as possible.
Fortunately we can maximize the delta-v obtained from the final Jupiter gravity-assist since we presumably don't care which trajectory Chris leaves on.
I'm not a rocket scientist, i've just played Kerbal Space Program -- it helps you learn simple orbital mechanics.
