Fitting an oven in a chausson flash 03

Ogon25

Whilst I don't intend to do this myself, does anyone know if I can replace the grill with a small oven even if I have to take the drawer out. Also can someone recommend a good dealer for aulterations in Oxfordshire. I bought from Webbs in Reading but found
them useless, rude and unhelpful. Once they had my money they couldn't care less. I would turn up to collect my van which had work under warranty to find it hadn't been done on numerous occasions- Beware