I'm sure either of those lathes will be a good trade for what you're giving up to get them, hopefully you got a good price for your 950 as they are still quite sort after.
Just checked the pricing, aren't the 1340Gt and the 1440GS similar in price for the base machine, within $500 right?
As far as a 1236 versus 1440GS, both Chinese COO, but the GS is so much more lathe for not a lot more money.
Good luck on the KLR sale.
I've got 6 bikes in the garage including a Suzuki DR650 and Suzuki VStrom 650 both setup for travel.
David.