Buying Advice Replacing JD 5303 with 5075

[budlite]

I love my 5303, but I have got to have a cab. Hearing loss is main issue, but summertime heat, humidity and bugs also factor in. Seems as though the 5075 is a newer version of the 5303, as far as size and HP are concerned. Is this a correct assumption?

Looked around a bit online for used 5303 with MFWD and under 1000 hours (700 on mine) and it seems it might be worth about $18-20K.

I would also consider a Kubota, but haven't researched them as yet.