B&W 802D tweeter replacement

Sell them as-is to someone that wants to repair them correctly. Love them or hate them, B&W speakers have amazing value on the secondary market, and you’re about to make them (close to) worthless. 

That’s not very helpful and why I don’t like forums. I’ll get advice elsewhere.

You asked for advice. Some of us have owned the 802D, myself included. I believe people were trying to be truthful and help you understand what you were about to undertake. You simply didn't like the answer you got and felt offended. With situations like this, the reality of it can be painful. Yes, you can do whatever you want to this speaker but it won't be in your best interest, unless you bite the bullet and get original Diamond replacements. You said your friend gave you those speakers. A new pair of those had a retail price of $14,000 when they were discontinued for the newer D2 series. Yes, $2200 is expensive for new tweeters, but considering you got the speakers free, most of us would look at it as a bargain for those speakers just having to buy the new tweets. IMHO.

At the online B&W parts store, the tweeter for the 800D series is available as a separate part, SKU 14265:

http://www.bwgroupusa.com/bwgroup-parts/index.php/bw/speakers/800-series/800d-series/803d/800d-tweet...

It is priced at $1086. Not much cheaper, but full replacements are now $1300.

If you can’t afford OEM tweeters, buy the tweeters anyway, bring the speakers back to spec, sell the speakers at a discount to market rates (assuming the rest of the speakers are in minty condition) and take the proceeds (minus the cost of the tweeters) and buy yourself a speaker you can afford (and perform the way the designer intended). They’ll move quickly. You’ll be waiting a long time for “used” tweeters to hit the market, and anything other than OEM will take the speaker out of spec, and, unless you are dishonest, will never sell should you choose to move on.