IO520M
I did my initial IR on a 310R with Aerofan. It was in pretty good condition with all the necessary bits and pieces. It had HSI and RMI and digital avionics (can't remember which make).
The exam route for your renewal will likely be chosen the night before and will probably involve DME arcs to VOR/DME approaches based on one of the local VORs rather than an ILS into Madrid or similar. They were extremely efficient and good value when I went there - quite a breath of fresh air compared to the UK. I stayed in a "Hostal" in the centre of Madrid which was arranged by the school - about an hour by tube and bus from the airport and surrounded by great bars and restaurants.
If I were you I would give James a ring and have a chat - maybe search for other threads on the school - I know there have been a few.
A