Glad you found it some help - you have obviosly given this alot of thought and good luck to you I,m sure you will have alot of fun.
I can only tell you about Gloucester Old Spots but these weaners will be approx. 8 weeks old when weaned. We take ours to 7/8 mths for pork, 8/9 mths for baconers. Sausage pigs can be as big as you like really, in fact our sows that have come to the end of breeding go into sausages (you get loads!) and they make fantastic sausages. So, in fact you need them to get to at least 8 mths at least.
Also, we breed all the year round. Litters do tend to be bigger and better in the spring/summer months than through the winter.
I,m sure you will manage. At least you are not afraid to ask questions - that way you will learn alot more and alot quicker than some-one who does it by trial and error. Once again, good luck and ask us as much as you like.
Own rare breed Gloucestershire Old Spot pigs and sell pork & bacon