If a Yeti ASR-5 is within budget, this may be a viable option? 5″ rear travel with 120 – 140 up front. Rear suspension uses slight flex in the seatstays, so loses pivots in this spot (less to maintain). Mine’s built up with the maximium fork up front and is ace (and pleasantly slack). I do a fair few road miles too, as I can and do ride to all my trails. With a lockout up front this the Yeti has been very good at this.
So far, the maintenance requirement has been zero, but then I’ve only had this since March, so too early to tell, really (although it does get a fair degree of hammer).
They are expensive, although they are very nicely made.
The new Ragley’s might also be right up your street when they finally get released? They’re designed around the shorter rear / longer front travel (and they are nice and slack). Twin link suspension,though, which IME tends to mean slightly more maintenance.
Personally, if it’s just / mainly for commuting, I think I’d be sticking with a hardtail.