OP you may want to look at the L4701 Kubota
It does not have DEF but does regen which is no problem at all
Mine does not have the HS...it has clutch/manual trans and I love it
Been running this tractor for 4 years and not one minute of trouble
The L4701 has the M series frame and is the largest in the L series with 47 HP

When I need expert advice I tend to talk to myself
The older I get the better I used to be