I bought a used one. that was an early 1.? version. Called Lionel they fixed the charging circuit and upgraded it to version 1.3. And provided new Rechargeable batteries.
I'm now up to ver 1.60 on base and 1.61 on cab2.
I think that I done ok since it was a free upgrade +postage.
I'd go for the one above for $200 +shipping.
IMHO
Regards,
Mike