I'll tackle the coins in the order that you have them imaged. They all suffer from either blurry images or compression problems, but here is what I am seeing- 1886-S; Very scruffy coin that is anywhere from AU58 through MS61. You can buy a certified example for around $200 (AU58) up to about $325 (MS61) 1885-CC; Has a nasty gash behind the portrait as well as what appears to be residual PVC on the devices. I think this is AU and around a $600 coin. 1889-O; A bit of a scruffy obverse with a reverse that is odd to interpret, but looks like it might have been wiped. If it hasn't been wiped I would go anywhere from AU58 through MS62 with certified examples available in the range of $170 (AU58) through $200 (MS62).
I sold an 1885 AU 55 CC recently. The coin was posted here at one point. I believe I got about $600 for it - but you would have to deduct the final fee and shipping from that - and it was certified. So unfortunately, the $450 you paid for an uncertified example is probably ok but no hugely great deal - a wicked high price if it details. I also sold a VF30 89' for a little over $1400. I broke even after selling expenses for what I paid for it about 3 years ago. Your uncertified example?- I wouldn't pay all that much because full certification doubles (or more) their selling prices. There are so many details grade coins out there among the old ones, full grade is pretty hard to find. I'm not able to accurately judge the likelihood of coins making grade - but I get lucky now and then!