All good advice with different thoughts here and there, so good luck on what you decide to do. Shade grown field cultivated should not even be a consideration as it can cost up to $30,000 per acre to maintain.
Woods grown or wild simulated is the only way to go. Not sure if you were considering shade grown field cultivated or not but I saw it mentioned in some post.
If you only plant 5 to 10 lbs now and wait until 3 to 4 years to see how it does I suspect you will be disappointed that you did not plant more.
You have asked for opinions on how to make this a living. This does not sound like a thing you want to do as a hobby like many on here are doing which there is nothing wrong with. Many people jump into business ventures with substantial upfront cost. Some make it and some do not. They are risking big money for franchise fees, business development cost, building cost, employee training, merchandise cost, rent, equipment cost and so much more. If you truly have $5,000 to $10,000 to put at risk then I still say plant that 50 to 100 lbs now. This is not going to require you to give up you current full time job.
There are not many businesses you can start up for $5,000 to $10,000. If all fail and you do not get one single plant to survive then you have gave it you best and possibly saved yourself a lot of hardship and headaches down the road by trying it on an even larger scale. One again no one wants to lose that kind of money. But it is still a relatively low amount invested to pursue a dream and a new business venture.
Chances are thou that a minimum of 10 % would survive after 10 years if you never planted another seed. So if you plant 50 lbs x 6,500 seeds per lb = 325,000 seeds planted. If only 10% survive to year 10 you will still have 32,500 10 year old plants. 32,500 divided by 300 (Conservative #) roots per dry lb = 108 dry lbs. 108 dry pounds x $500 per dry lb = $54,000 worth of ginseng in 10 years.
I do not see how you wouldn't try planting 50 to 100 lbs of ginseng seed next fall with everything you have going for you.
You are young, eager, knowledgeable, determined, have property, have support, have equipment, have the time to plant even with a full time job. All you need is experience and that is hard to get sitting on the sideline.
All good advice from many different people on which way to go and at what pace. I am not saying they are wrong or I am right. I can only offer you my opinion on what I would do and it is just that an opinion.
I hope you decide to do what is best for you.
Good luck again!