DCM Time Window 1 questions

I am considering purchasing a pair of DCM Time Window 1 speakers (circa 1980), and I am wondering:

-what would be a reasonable price for a pair in excellent condition?

-what would be the absolute minimum amplifier watts per channel to get good sound from them?

-how would these compare in audio quality to a set of well-made but inexpensive speakers with current technology?

Thanks for any input-
Probably $1000.00 or less. 30 wpc would be my absolute minimum, 80 would be ideal minimum and SS amps at this power rating typically only use one output device for better sound. Lots of choices in the used market, depends on what your priorities are. Consider a pair of Quad 57s for a bargain no-brainer.
Have the woofers been replaced or re-foamed?
they are in their original condition.
Significantly less than $1000. They cost less than that new.
I owned them when they were all the rage in the 70s.
I have seen pairs sell for $200.00 to $250.00, which seems quite fair. The sound is a bit thick and rolled off compared to current production 2-way bookshelf speakers such as the Paradigm and PSB models. But it is a big sound and is quite nice. A friend has a pair that I purchased and they are still working fine without any issues. I really don't know what the minimum amp power would be as you do not list the size of your room or your musical tastes, but they are reasonably sensitive.
I think Viridian pretty much nailed the sound and average used price.
I have a very early pair of Time Windows. The value will depend on the condition of the drivers - they are a pain to get the cloth off and back on. You should be able to buy a perfect pair for $200-$300. I'm currently running them with 100wpc...but have used as little as 40wpc. I wouldn't worry too much about power, but anything less than 30wpc won't allow them to sing.
I owned a pair purchased in 1980 for $660. They had a slightly colored midrange that could be improved by raising them on 9 inch stands. One manufacturer sold wrought iron stands that were formed to fit the uniquely shaped base of the speaker.

They used modified Philips tweeters and received a good review in The $ensible Sound as being smooth with good imaging.

I would think good inexpensive speakers today would sound brighter in the treble, but the TW's would still sound enjoyable.
I agree with Viridian, when I had mine I found them very smooth and likeable, but they just simply are not worth alot of money.