This is my first post here but I'm really happy with this SSTO and had to share. I call it the, uhhh, Jool SSTO.
Full album: Here
The ship flies well except when completely empty. It took several tries to get to the runway. But with better gravity assists and a better pilot than me I'm sure it could explore more of the Joolian system. I only did a Kerbin-Kerbin assist to get to Jool, not an Eve-Kerbin-Kerbin assist.