Hi Olly,
we prefer to clean the printer using our cleaning carts, then charge it with Sublisplash carts.
The installation procedure of an ICC profile for the SG-400/800 printers is slightly different comparing to
the normal Ricoh printers, I would recommend to get in touch with Adam from DyeSubSupplies.
Not a big deal though.
They do an Academy session on Friday and have lots of interested guys registered for already,
might make sense for you if you should be around?
Let me know if you should need additional assistance.