Hi Dasman, welcome to the forum!
I'm in the market for an 1887 also, check the TD section, there's quite a few on there that sell them, as a member mentioned to me before, if you want the watch to be fully working (chrono's etc like the gen) avoid the $100 ones and push your budget to the $300-$500 mark!
I'm currently looking at PureTime's website, which has all of the above plus you can order full Tag box sets which is ideal.