Eve Lander Design

[Branjoman]

Hello, so recently with 1.0.5 released, I've tried to make an Eve lander that can return to Kerbin - quite an undertaking!:cool:. So far I've managed to rustle up this:

[SIZE=2][URL]http://imgur.com/HJ7mmia[/URL] (Imgur embedding hates me:()

The bottom two stages with the 3 Vectors and Aerospike fetch 6.25km/s of Dv, which I know is not enough to get an orbit, but my third ion stage gets over 9km/s - would it be feasible to boost my Ap up using the first two stages, and then circularise with the ions?
And if not, how could I tweak my design to squeeze more Dv out?

Thanks in advance.

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[EdFred]

I doubt you will have enough time to circularize with the ions. What's the TWR on the ion stage?

[Branjoman]

The TWR of the ion stage is, by my calculations, approximately 0.13.

[juanml82]

I'd try monoprop or spark engines for the last stage. They are also lightweight and have better TWR

[Sanic]

Spark engines have the second-best TWR in the game after the Vector engine, so I say the Spark.