Samantha B I just completed my kitchen Reno in Perth. My pantry was also bricked up like yours. Literally doubled the space by getting rid of it but we found out after that the pantry was structural & we had to put an extra support beam in the roof instead ($800) so be careful of that! We completely moved the plumbing, gas & electrics & it only cost a few hundred! So don't be afraid to do that as long as u know decent priced tradies! We ended up doing nearly everything ourselves & went with a masters flat packed kitchen & sourced our own stone benchtops dirt cheap ($2500 installed for a 2m bench & a 1.5m island each with one waterfall edge.). Heres before & after pics.

Yes- that is a very good question!!! I've been trawling Australian suppliers for months for something different. I also need Appliance Pulls (for integrated DW and Fridge), which there is very limited choice of here. Everything here is same-same China made mass imports. I literally ordered my hardware last night from: www.knobbrands.com They do ship to Australia. At least I hope so!! I've ordered them and paid! Without knowing your budget, you could check out www.englishtapware.com.au They stock some high-end UK brands. I did go and view them in store and they are beautiful handles/knobs and fabulous quality. I couldn't justify the $500/each for appliance pulls when I need 4!. It was a real dilemma, I hate it when I see something I love and absolutely can't have it!! I tried some on-line vendors in the UK, and had no luck with them either. I can update you when my handles arrive.

Not sure where you live but have you tried http://www.architecturaldoorhardware.com.au/ or http://vinco-architectural-hardware.business.site/ ? Ialso foudn some in other places when i searched houzz for knobs - https://www.houzz.com.au/professionals/s/knobs/c/au

It would not be unusual to have black knobs, handles etc and different hinges. It is personal preference though.