Lee , I'm not sure that you can get a machine that will do both .
Most chippers will not mulch soft green stringy plants and neither will a lot of garden mulchers .
Whilst I have a heavy duty electric chipper machine , here is what I've found out ..I strongly suspect it will also apply to an engine powered chipper .
I've recently processed about 60 foot of tree line from next door's garden . It was the cuttings & prunings that had come from their 24 foot tall Leylandi pruning's ... they are now down to 9 foot tall ( they were planted 2 foot apart 12 years ago ).
I had a lot of broad bean stalks , pea vines , comfrey , spent gladioli, finished tall flowers & all manner of garden weeds that Alison had pulled out .
The only way I could get to stop them turning to long bruised fibres and wrapping round the shredder's gear type cutter was to feed a little of the green stuff in with each feed of Leylandi prunings.
Even then I had to stop & disconnect the machine a fair few tines to un bung it of the softer greenery that became so wrapped round the whole of the cutting mill /gear that it was just sliding over the pressure plate .
This meant that the teeth of the milling gear were covered in plant material so could not grip the thicker branches even if i pushed it hard down into the machine. .
As a result I've taken to drying the longer thicker green stuff on a wire frame raised well off the ground , so it loses almost all its water content .. they now shred lovely .
The smaller softer green weeds are being put as is into the composter bins .
It may help to make a big heap of the softer stuff and let it compost under a weighted down plastic sheet till next spring and only chip the harder woods . Then come spring 2016 mix both heaps together along with plenty of cow byre cleanings inc straw or stable muck , wet it well as you build the heap , recover in sheeting and leave it to compost till spring 2017 or spring 2017 .