Hi onedergirl,
if your budget is 20k and above, still possible to get an ID but it all depends on how much you want to do for reno. If your budget is below this, I'll think it's not that easy to find an ID. Usually an ID overcharges as compared to the contractors but some people really find it worthwhile to engage an ID because of theme, design and project management while owners are busy. Some contractors are not easy to handle and communicate with so engaging an ID who is able to handle them works for them. It boils down to budget, your theme, how much you intend to renovate etc. If it's not a major project, good to go for a gd contractor. I went for an ID and spent quite a lot but I personally feel it's worthwhile since both my hubby and I were new to reno and we are not gd in designs and colours etc. We did the tiles too because we didn't take them from hdb. We also overhaul the toilets by overlaying the tiles etc. Usually with an ID, the entire house design will be more coordinated but it boils down to your preferences. Some like every room to be vibrantly different and so forth. And yes, kitchen is one of the most expensive places when comes to reno. Do factor that in.