The 13th C Knightly from Albion's Squire Line of swords is as sweet handling as you'll likely find for a singlehand sword from pretty much any pricepoint. The only difference between it and the Next Gen line Knight is a higher refinement of parts (crossguard, pommel/rivet block) and higher level of finish to the entire sword. This sword is more utilitarian in design, what you'd expect to see on the belt of a man-at-arms or maybe a newly belted knight. A very solid sword, I had one myself.
As Sir Ian said, however, this man is asking for more than the usual- I think I sold mine for at or around $300. The grip upgrade alone would probably run about $70 - even brand new you'd only pay $543 ($473 for the sword, $70 for the grip work) - so this isn't a good deal. The simple leather scabbard is just that- I doubt it was made for the sword, just thrown in as a blade protector.
Let us not forget, as far as the seller knows, this is the only SL Knightly with this specific grip customization on the planet. My thinking is, this guy doesn't get out much. lol