As others have said, I’d consider your time reasonable doing what you are and taking care in the product you provide. There’s been a few post on here about yield and I posted a breakdown of a fallow pricket
here. Your prices are better than what I can get locally here though!
I tend to skin and then hold the carcass in the chiller for 24 hours to dry a little the meat before quartering and then processing those cuts in my kitchen. As others say, go for bags - you don’t need many different sizes and I’ve found the 220x330 does most of my mince, diced haunch and with the addition of salmon boards, my steaks and loins. As I’m close to Nisbetts main clearance outlet I have quite a few Vogue Gastronorm stainless steel catering trays into which carcass cuts go initially before being processed. Vogue make a gas-tight sealing cover for the smaller Gastronorms and I find those invaluable for ensuring that trimmings don’t dry out in my intermediate fridge whilst I’m processing the loins, etc. When processing, I’ve stopped offering a wide variety of cuts and concentrate on those that sell well from the Farm Shop that takes most of my product. I’m about to go into summer mode so less diced haunch and more kebabs and burgers. I hate making sausages as it’s so much more faff than burgers. I do have a chamber vacuum but I prefer my semi-professional embossed vacuum bag machine and as I’m weighing the next out, the previous is finishing sealing. Making good labels is essential IMHO and there threads on here about using Brother printers to do just that.