With two SSD's you should keep Linux GRUB off of the Win7 installation by booting them separately via the BIOS. Unplug the other SSD when you install. After installs, plug back in both SSD's, set preferred one first to boot in BIOS setup, then boot the other one when needed using the one-time BIOS Boot Menu key given on first screen.
For now wipe the SSD's with Diskpart Clean Command
(not Clean All which is overkill and hard on an SSD) then follow these steps to get a perfect Clean Reinstall - Factory OEM Windows 7.