(Updated) In the case that accomodation at Grand Kampar Hotel may have reached "full-house" for the event day, listed here are some other hotels in Kampar you may call for availability.
Grand Kampar Hotel website
05-466 2111
The Trails @ Kampar website
"Townvilla" resort type
Other hotels
1. Siswa Hotel (near Tesco) - 05-466 8122
2. Sunlight Hotel (near Tesco) - 05-465 2952
3. Regal Hotel (Kampar town, opposite Minat) - 05-467 1819
4. Fully Well Hotel (Kampar Town) - 05-466 6363
5. Sutera Hotel (near KTAR) - 05-466 8212
6. Kampar Rest House - 05-467 1062
7. Kampar Times Inn - 05-466 7977