Aerospikes for Duna? Well they're flat and have more thrust than the LV-909 so I guess that's an advantage.
Personally I did this months ago in KSP 18.2 (never updated the LP enough to reach the point of that mission
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):
"Wydma Project" - Manned Duna Exploration Program
Great day for cosmonautics in Polant, launch biggest payload yet on most powerful rocket, it carry Krzelecki Cruiser modular interplanetary mothership into orbit.
Cruiser now in ~140 km circular Low Kerbin Orbit, launch Keweliusz Heavy Dunar Lander on separate rocket and dock with Cruiser. Now have full crew and full capability of complete mission for socialism on Red Planet which is in color of workers revolution.
Get gravity assist from Mun on way out of system, totally not coincidence Mun in way of Cruiser. It all plan by greatest of engineer in socialist fatherland! (I think it gave me like 10 m/s of delta-v)
After 230 day in space cruiser enter stable orbit of Duna-Ike system. Cosmonauts Bonescrapperewicz, Konjad Kucykowski, Storyfagurski, Elwro Kermańczyk and Draco Komisarski now first of Kerbal-kind to see other planet from up close. But this not as close as they can get.
After orbit lowered to 112 kilometer pump fuel to lander, surface team transfer via EVA from crew compartment to less spacious lander. Lander undocks and begins descent.
All cosmonaut fearless as they travel at mere 784 meter per second after parachute start deploy. Such is their faith in socialist engineering that create lander.
During final 100 meter of descent nuclear thermal engine fire and slow lander down to acceptable landing velocity.
Landing success. All cosmonaut alive and well.
Later in mission Weba-1 Duna Rover arrive and autonomously drive 30 kilometer to landing site. Comrade Konjad Kucykowski stay in lander while two other cosmonaut drive to explore maria about 40 kilometer to the east.
Since this was a stock part rover before actual rover wheels were implemented it got stuck in the maria as the ion engines were not powerful enough to climb the not so steep hills. I had RCS installed on it as a booster for such situations but they changed RCS tanks and consumption in the meantime in a patch so it ended up having effectively at least 10% of booster fuel than it had running out too fast to get out. Had to land a bigger rover with more ion engines. Luckily the cosmonauts had enough potato to survive waiting over a year for a new rover. Making rovers is so much easier with actual powered electric wheels.