Aeroklub Zbraslavice (LKZB) does IR and CPL/ME. It's more of a club, but do all the pro training stuff. Their rates are amongst (if not the one) most reasonable regarding aircraft. There's housing, but showers in nextdoor building, making it bit hassle in the winter, unless you stay in the village hotel.
Downside, that'd be grass surface this time of year, middle of nowhere if not flying. Better check with them how much/fast you'd fly. Also, mostly Zlin/Moravan aircraft, not sure if you'd like it or not. Friend did his FI rating on Z326/42 and had fun.
Spain right now? Oh my, better than Central Europe. Gimme that, stuck in heaps of snow in the UK.
I only did some gliding at Zbraslavice. If not LKZB, then Fly For Fun possibly. You can get comparison of Czech schools at
Aeroweb.cz - Server pro piloty. Pilotní průkazy, přehled pilotních škol, letecký výcvik - in Czech, but via menu 'pilotni prukazy' -> letadla -> voila..
F-air, as I see, now has Tecnam twin, quoting reasonable price. Other places have L200 Morava (granny, Czechs love it, own 'antique') or PA-34.
edit:
Czech CAA list of FTOs, showing which ones do IR..