I'm pretty sure the S465 is T4. There is an S364 or something like that which is T3. I doubt it would be as good as the Scheid charger you have though.
Which organization do you normally pull with? A custom charger from the likes of E.D., Scheid, Precision, etc. made to fit within your rules is going to be the way to go. Some are much more expensive than others. Dollar for dollar, I like what Glenn and Chris of E.D. have to offer. I think you'll find that your consumer dollar goes a long way with them compared to other custom charger and off-the-shelf chargers.
Good luck