Without seeing pictures of your items
in questions I can only give you a wide range estimate.
There are many designs for the Miller
Time pool table light but most are selling between $30 to $230
Below are a few examples:
Your Spuds McKenzie lighted sign is
worth $40 to $90. There is one up for auction now asking price $165
The actual selling price is much less.
In 12/2007 one sold for $79.99 another in 3/2011 for $49.99
Your Antique Barbers Chair can sell for
as little as $100 and as high as $4,500 depending on the brand name
and the condition.
Below are some examples:
Hope this helps.