Yamaha NS1000M Help, Advice, PLEASE

Hello all. I purchased a nice pair of the legendary Yamaha NS1000M today. I got a good deal on them, and I actually bought them with the intention of trading them for a nice pair of Planar speakers. Then I made the mistake of hooking them up. Oh my. These things are wonderful. Perhaps the ugliest speaker ever made, but truly astonishing sound. I hate to say it, but in some ways superior to my (formerly) unassailable Meadowlark Shearwater "Hotrods". Enough background. I have several questions.

1. This pair was made in 1981 (original stickers still on the rear), and they use the old-style spring-loaded terminals. I hate those things. Will it ruin the value or be a bad idea to install a nice pair of WBT 5-way binding posts or similar?

2. If keeping the original terminals is best, what type of speaker wire should I use? The darn things won't accept anything heavier than bare 14 ga. wire. Is there an audiophile wire designed for this application, or am I relegated to the ole Radio Shack "zipcord"?

3. This pair has the black ash finish, and they are not attractive. Would it be a bad idea (or affect the value) to have the cabinets refinished and stained a medium cherry or oak?

4. The 12" woofers are dirty; really dirty. Is there a way to get behind the metal mesh covers to clean them up? My vacuum will get some of it, but I really need to run a tacky cloth over them to get all the crud. Suggestions?? Are the metal mesh covers removable?

5. I currently have these monsters on my carpeted floor, and the mids and tweeters are significantly lower than my ear-level. What brand, type and size speaker stands are recommended for these speakers.

Thanks all. I'm awestruck. Any other suggestions from you NS1000 fans will be greatly welcome!! -David