Hackers Help: Sliding doors for Hyllis + Numerar?

IKEA items used: List of IKEA items used in your hack – Numerar + Hyllis

We purchased 5 Numerar 246 X 65cm. We cut 1 of the Numerar into 4 pieces for the base, screwed another Numerar on it. Then we use Hyllis for the frame. We would like to add sliding door onto it. What would be our best option? We could not find a door that’s wide enough. Thanks in advance

~ by Vicky