You can use the Teg pistons, but the head swap will require some fabrication. The problem with swapping the head is that there is no timing belt available for this swap, so you will need to relocate the timing belt idler pulley.
IMHO, It's better to swap the whole D16A1 and tranny. Less work, better tranny, equal length axles, and better results.
BTW, Here's my buddy's Civic:
http://www.redpepperracing.com/forum...howtopic=20659
It's a long thread, but maybe you will find some inspiration.