I think you have already heard the speaker you want, and hearing the 707 is going to be a disappointment.
The only qualifier would be that if you envisioned growing the system within a few years you might get the 707's now with the intent of moving them to surround duty when you get the 703 or 702 floorstanders after a couple years of saving up.
KEF R500, R200C, R100, R50, SVS SB2000 sub, NAD T758v3 AVR, Pro-Ject RPM1 TT w/ Ortofon 2M Red, Bluesound Vault2, LG UP875 4K BlueRay, Samsung UN55JU6500F 4K LED TV, KEF M500 headphones, Sony CDP-CE500 CD changer. Desktop: NAD M10, KEF LS50, KEF Kube 10b. Guest room: Hafler 200 L-R, KEF reference Model 100 center, KEF iQ10 surrounds, M&K V-90 sub.