You dislike the LSiM703 but love the 707, but the 707 is too expensive. Sounds like the LSiM705 that I own might be perfect for you, mine are for me!
But the 705 is also out of your budget at 3K, but really only because of your "problems" with eBay and ordering online in general. If you want the right speaker, get over your online problem.
You're posting online, why do you "lack the ability to order stuff online"?
You can get a grey market pair of new LSiM705s for 2K or get a pair straight from Polk with warranty for 2.5K on eBay today. I built a custom motorcycle from hundreds of parts mostly from eBay. ebay is what you make of it, just like the rest of the internet.
I think the LSiMs are EXACTLY what you need for years of enjoyment. Find a freind or family member who can ordewr online for you. Go buy a pair, where there's a will, there's a way...