Senior Retro Guru
Wow, beautiful. The Suntour groupset in that condition must have taken some time and expense to get together. I'm talking from experience, your component choices are very similar to the ones I chose for the Biria in my signature.
You know, it wasn't cheap-cheap, but compared to the prices things go and are going for right now, I actually got really lucky with it. As I said earlier, the bulk came from one seller, and was taken off a Paramount I believe. Really low, if any miles. I don't remember the exact cost but certainly well under $500 including the wheelset and all the major components. The pedals were just the cost of labor to pickup and ship a bike to someone else. The headset wasn't cheap, but I got it cheaper than they've been going for of late. I even managed to find a matching XC Pro seatpost in the right size, but I didn't love it on there, and it's a tad scruffy. As well as the champagne brake levers. Those were also relatively cheap, as they were listed on eBay poorly with bad photoshopped photos, and I took a punt.
Anyway, all in all, I feel very grateful for getting pretty much the entire group at a relatively reasonable outlay, and without too much headache in tracking down. It's certainly nice to know I have the whole group now. It was really only the headset I had to be patient for. And now I've got two and half of them, as I just picked up a 1" version for the parts bin on the cheap!