Hello!
I have a blood tracking collar ,that I used on my Bavarian Mountain Blood Tracking dog named FTCH Jack. ( Bayerische Gebirg Schweisshund)
I used a 9 meter x 3/4" leather strap for tracking line, attached to the collar with a buckle - no snap!!. A leather line beats all!
How many swivels do you need? I think I have two or maybe three round brass swivels in my shop, and I can sell them to you.
The dimensions of my collar is:
Total length incl. buckle :60 cm
Width: 42 mm
Width of billet: 32 mm
End of buckle -> swivel :37 cm
Hope this will help. I´ll post a pic of my line docked up the traditional Bavarian way later.
( My dog Jack was the highest ranked tracking dog in Sweden 2002, Field Trial Champ. He is gone to the happy hunting grounds by now , sorry to say! Nothing beats a Bavarian tracking dog on wounded game tracks. Once he tracked down a wounded bull moose and the track was 27 hours old when we started, 3 hours later I killed the bull! That´s what I call a Good boyy)
/ Knut