2-way bookshelf with ScanSpeak D2608/913000 + 5-6.5 Midwoofer

I think some of Troels Gravesen's designs use that tweeter, although usually in MTM form. Apparently it's pretty much the same tweeter as the Peerless 810921 which is used in several commercial kit designs, such as the Peerless HDS455 MTM:

https://www.wagneronline.com.au/attachments/Audio-Speakers-PA/SpeakerKits/HDS455-V1_Plans.pdf

You might be able to work out a crossover for a TM version from the information supplied. Woofer is a 6.5" Peerless HDS.

HTH

Geoff