If you get a 100% female Het Pied and breed it to a normal you will have all normal looking off spring with each one being a 50% possible het Pied. The good news is by the time you spend the money on a Female Het pied most breeders will throw in a male het pied for free. Then each off spring has a 25% chance of being a pied and any normal looking off spring are 66% possible het pied.
Size and age questions have a lot of different answers and since this is such a touchy topic and I am new to breeding I will leave this up to a more experienced person to answer.
You can "attempt" to breed any time of the year just by playing with temps and such.
Incubators for cheap are normally the ones you make yourself or the herbovator which has mixed results. We went all out and got a nice incubator since we have plans on breeding expensive morphs and the cost of loosing one hi-end morph compared to the cost of a nice incubator more than justifies the cost in my opinion.
I think it takes the eggs 57 to 60 days in the incubator to hatch!
Hope I helped!