It really depends what you want. If 80% of the way there is enough, or if you're more after key feel than sound, there are relatively cheap options, from cheap $40 outemu socket boards (that only fit outemu keys unless you wanna file off some thickness from other keys legs) to something like the GMMK barebone, over to a full kit like the NK65 Milkshake (which is INCREDEBLE value and runs for a few more days)