Nothing wrong with a Bolex. Also consider a Canon Scoopic. Get the MS. I had two of them and they took nice pictures and always worked.
I have a Krasnogorsk K-3 buried somewhere in the closet. Shot with it once out of the back of a open hatchback/windows of a VW on the freeway (110KM/hr) on 50D. Was expecting a gritty look. It came out looking like a Ford commercial. I've heard the lens being talked about as not so sharp, but for the $130 I paid for the Krassie, I was gob-smacked at the footage. Doesn't work so well at speeds ~30fps though, registration starts going wildly off. Then again, I have never had it serviced, ever, ever. So, I don't know if this is normal. Came across a Praktica 50mm lens from the family, more good footage. Aaand, a better/brighter/larger reflex viewfinder than any Bolex R16 I have ever looked through. There are better cameras out there for sure, but for ~$200, they're a hoot to use.
Lots of choices for little money, depends how much you want to spend I guess.
If you want to spend some money, get a Bolex EBM or EL, lots of room to grow in many ways.
Cheers,
DTF