Just the Samsung diodes will grow great bud, Adding UV will increase the THC & terpene content a bit but the IR isn't necessary.
You can use 1-2 Agromax T5 UV bulbs and run them for 20-60mins a day, those work really well and are fairly cheap compared to LED UV. The problem is they need to be a good ways away from the canopy because they are very intense and with 4' ceilings that will be tough. They also make Veg+UV bulbs which might work better in your situation because the UV isn't as intense and the bulbs can be placed much closer to canopy.