it is a universal fact that the most reasonable priced and higher end materials would be IKEA kitchen cabinet systems, just that you'll need to pay extra to IKEA for installation. Around 2~3k depending on total size.

They use Blum parts, imported from Austria which is the benchmark for upper end cabinets (including by Signature). They also come with 25 year guarantee (got friends who claimed before when parts got issue, never reject even after 5 years)

but keep in mind that IKEA doesn't suffer from the lack of customers, so don't expect service to be tiptop.