The Clip should come with the s15 Axles, but I dont know if they will be bent, or if they will fit with the s13 hubs.
He also said the subframe may be bent(although it doesnt look like it) and he doesnt reccomend using it. So im guessing the s15 Pumpkin will fit into the S13 subframe just like an s14 or J30 one.
J30 axles does sound like an option, too. and stronger is definetly a plus

your right about the engine mounts.
thanks for the info!
p.s. I need to be sure ill be getting the ABS computer. he said it sits on top of the regular ECU in the s15. Is this true?