Hi NJ. Off the top of my head used a good 2 and a bit generous tbsp of the Botti packet spice per kg chicken, to make a not overly thick marinade, pretty standard consistency. 1 3/4 tbsp fresh g/g paste. A good pinch of ajwain (optional) and plenty freshly ground black pepper (to taste). 3/4 tbsp dried mint. A slug of lime juice (cloudy bottled stuff, 10 ml). Preema orange. Water. Enough oil to gloss. No salt.
I got 2 x 1 kg paste on eBay last. Paid over the odds. In the past the larger Pakistani supermarkets were the best bet. The Laziza products are made in Pakistan. The paste gives better results than the packet spice, imo, by quite a margin. I haven't used the packet spice for ages. Reckon to to add some dark mustard oil when I try it next.
Rob