Hi, Matthew.  I'm glad you were able to make the plant sale,  it is incredible.  I am unaware of any other sales offered through Extension.  Most of what you are after are pretty common so, I'd imagine you can pick them up at some local nurseries.  Unfortunately, as Extension MGVs we are unable to make recommendations. Whatever you can't find locally, you could always try online nurseries as well.  I've had very good luck ordering online and receiving plants in great shape.  I wish you well on your hunt. Take care.