You said it.I'll throw a huge wrench in the mix.
IF my budget was cut off at a 3E, I'd buy a 2038R instead. You get more tractor in the large 2R and the basically the same capacities.
That was exactly what I was going to recommend he look at as well.
I would much rather have one of the new large Frame 2Rs then any of the 3Es.
If you really like the slight size increase of the 3 series I would look for a low hour 3039R or 3046R used vs the 25hp E. Even a slightly used 3033R would be ok. I have had both a 3033 and 3039 and the 39 has Turbo and at times that seems or maybe just me, that the turbo really seems to be giving me more then the 6hp the specs claim the differences are. 3033 Was a good machine, I just traded it up to 4066R because I was getting large bat wing mower and needed a min of 45 PTO hp to run it, I really liked my 3039 a little better mainly due to the power advantages it had, so I traded the newer lower hour 3033.
You don't really see major gains in loader lift capacity and overall capability till you hit the 4M and 4R series where the lift capacity nearly triples.