If weight is a concern yet you still would like an Arranger with onboard speakers you may want to wait a few months for the Pa800. It only has 61 keys but that might not adversely affect you. It weighs less than 30 lbs. and the output on the speakers is 2x22 Watt which is impressive.
The Pa800 is a really feature packed arranger and most of the demos I've heard are excellent. Although I don't care much for the Saxes or Harmonica and the Grand Piano eXp was lacking for my taste but overall I am very impressed.
The price is competitive also. But I would say to play one personally before you buy so you have a better idea if it will really suit your needs or not.
Also, Winter NAMM is coming up in January and could surprise us with some other new Arranger keyboard offerings from different manufacturers like Yamaha, GEM, Roland, and Ketron. So if you can hold off till then you may find a better product that may suit you even more.
PS: You've saved your pennies and it's worth it to spend it on something that will give you years of enjoyment.
So what I'm saying is don't rush it.

Do your homework and then decide.
My 2 cents..
Best regards,
Mike