Bro, that package sounds fancy but pricey lah. For $48k+, I'd expect more than just the basics for a 4-room resale. You need to get more details from them first, not just the lump sum pricing.
You also mentioned a basic smart home setup; what does that include exactly?? Smart lighting and a couple of smart plugs don't cost much to DIY.
Plus the market's flooded with renovation packages offering similar services at lower prices. Have you compared with other IDs or contractors? Sometimes, they can customize to better fit your needs and budget, especially if you're savvy about where you need to spend vs. save.