Welp, my 3-point conversions from Seatbelt Solutions arrived today, and they are excellent! BTW... made in the USA! Mine have the chrome hinge release instead of the button, and they look great! The only thing that is different from the OEM replacements is... the belts are 7 panel webbing instead of 4, like the factory belts.
And the slider loop where the shoulder attachment bolt is located, does not drop down about 7"-8''. This causes the shoulder strap to ride up on my neck, so I will fabricate a drop down segment myself. It's well worth saving a 160 bucks!

Additionally, I don't see any 5-point harnesses on their website.