My goodness you don't need to shout!
I have an 82143A printer with box, power pack, and manual. It conked out on me after a few months and my tinkering made it worse so I got it serviced. I paid $50US for the printer and $30US to have it serviced. This doesn't count the shipping back and forth. So I am into this printer for $80US plus shipping costs. But it works beautifully now and I am delighted with it. That said, the more bargain savvy around here will probably suggest I have spent too much. I am not very good at DIY stuff, so I need to pay a bit more for stuff that is fully functional, and when I mess it up and I have to pay to have it fixed.
On eBay an 82143A in a box and accessories should go for $50-60US tops, and if you want to sell it in our classifieds you may need to go $10-20 less than that. If it is in good shape and works that helps. If the battery still holds a charge that is sweet indeed, since replacement packs go from $27 from waterhosko to $36 at FixThatCalc.com (I have one of each). Can't use this thing without a working battery pack, even off of AC.
The HP41 QRG may be worth a few bucks to a true collector, but a perfectly good facsimile of the card can be had for free at The Other Site. I would have to know more about the program cards and holder before hazarding a guess as to potential value.
HTH. And please disengange the caps lock!!!!
Les