We did loads of research a couple of years back but in the end went for IKEA but with appliances from John Lewis and a custom made composite worktop and glass splashback , which we sourced on line. We are pleased with the result. We did have one or two issues with the kitchen , but these were dealt with swiftly and efficiently with their online customer service. It is a big job as you have to think of so many things such as taps, flooring, lighting etc, and to deal with your OHs illness as well, I hope it is not to stressful for you. You can get someone from IKEA ( and all the other kitchen companies I'm sure) to do a home visit and cost it all up for you. Might be worth getting a couple of quotes, as they may give you ideas you hadn't thought of. Good Luck with your project.