Dear,
Entering in to dairy without Agriculture will make you unrest/confused and may constrained to approach here and their. Remember how many posts you have posted within few days from the date of joining the forum.
I don't know your back ground and you have not at all mentioned about you to know any one and guide you properly.
Milk production is an branch under sustainable agriculture activity. When agriculture activities are carried out, then growing fodder is not at all a problem. Fodder can grow without much efforts because you can carry out all these activities. More over you will have more options of earnings as well as workforce.
Surely, for labors you need to pay wages, wages can be fixed based on their demand and your negotiation skills to fix it. Normally around 200 can be fixed if you wins in negotiations. Extract work from them is an another stage for you to get it done your targeted job.
It is alway advisable to grow fodder on your own to avoid 70% expenditure dairy towards feed for cattle irrespective of their numbers. Normally 5 cows can be maintained with the production of green fodder in 1 acre land.
Please remember it is not kind of job, but it is ownership. If you take ownership of Agriculture and dairy with personal presence with dedication, then you will be the winner.
All the best for feature
SWAMY