Sandtrooper - getting back into it

I've long neglected this, my biggest ever build challenge yet, over much smaller projects that've come along.
As you may recall, i've finished the helmet for the costume and i really think i should do a bit more.
Can't afford the rest of the armour at the mo' and i've done the E-11 Blaster, so all that's the left is the major thing that, apart from the muck, that sets the Sandtrooper apart from his shiny cousins - the backpack.

I'm really looking forward to this part as its a hotch-potch of parts that include plumbing piping, a loo brush holder, various tupperware pieces and a toilet cistern.
Lovely, Blue Peter-style model making.
Biggest challenge for the Backpack is the Sony radio which was used for, i guess, the control panel for all the gubbins.

Luckily, help was on hand in the form of Nathan off the excellent UK Garrison forum, who's supplied me with a Vac-Form front, along with various greeblies:


Cheers Nath for getting me back on track.