Regarding importing, we've always had mixed messages regarding this. Because the STOLP range are pure plans built, the most common message we received when talking to LAA engineering and field inspectors was that the plane would need to be stripped of the skin and all welds analysed etc. We still looked at importing, idea being find a good engine one (low hours), CSU and perhaps a canopy mod that allowed summer removal etc, but perhaps needing new skin. We could then re-skin in the UK after the hoop jumping and place her on the G reg.
In the end, we never imported but did the engine and fabric on our current SA300 (it needed both new engine and new fabric, hence the import thinking).
Ours is still off line with the fabric+ work, and out of permit.
Lovely plane, bags of room in both pits.
If you do go the import route, work with LAA engineering but more importantly, find (and hold onto) a friendly LAA examiner/inspector who will work with you and support you step by step with the import and subsequent engineering approval work. Don't import, even if LAA Engineering are happy, without having a friendly LAA field examiner/inspector with you through the process from start.
Good luck.