Promaster Lighting set-up - How much is it worth?

I found this posting on my local Craigslist and while I know Promaster does not have a great following I thought it would be a good way to get started without paying retail.

PROMASTER STUDIO LIGHTS

I bought this light system Last Nov. Used it only once for a family photo. They are in excellent condition.
2 lights
2 bulbs
2 umbrellas
2 deluxe stands

Make an offer.

I attached the photo that was with the listing.

I e-mailed and it is still available. I have no idea what to offer for price. I just want something to start with and then I can upgrade my equipment once I get some experience.

Any advice would be appreciated.

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More information, and probably better pictures, would be very helpful.

If these items are in Promaster's online catalog, post links to the specific products.

Are the lights continuous or strobe? What are the models numbers of the various components?

Well, how much did you pay for them... Just discount that price a bit,

This stuff isn't mine, it's a posting on Craigslist that I am looking to purchase.

I have tried looking it up but had a hard time finding a place to do that. Thanks for the link.

I found out that they are the Q1000 model. They claim to have paid $460 for them last November.

Any suggestions on what I should offer?