I've never used SCORE for an established entity; however, I have run several plans by them and found an outside, objective opinion to be useful. I've had SCORE members on my advisory board. I wouldn’t immediately dismiss them without at least talking to someone there first.
With regards to consultants, after grad school I worked for George S. May and International Profit Associates (unfortunately the big 5 only hired from Ivy League schools) before my partner and I started our own firm. This was years ago and I charged $225 an hr. Personally, I'd be leery of the experience a $75 or less consultant brings to the table.
As was mentioned, make sure that whoever you choose to work with will not only tell you what is wrong, but make any necessary changes. I'll be up to you to make sure you follow through after they're gone and not fall back into your old way of doing things.
I'm a big fan of the e-myth; you may want to look into it.
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A thinker sees his own actions as experiments and questions--as attempts to find out something. Success and failure are for him answers above all.
Friedrich Nietzsche