Totally hear you, the market does feel chaotic until you find a proper broker. We needed to own our ranges too and went through InterLIR. You can buy IPv4 addresses there with full support at every stage – contract prep, payment security and the actual transfer. They only source networks from real owners, and complex deals can run through escrow, which killed my paranoia about paying and getting nothing. They’re registered with RIPE, ARIN, LACNIC and APNIC, so transfers went by the book. Pricing was transparent, no surprise broker markups. For a hosting company moving from leasing to ownership, buying through them was smooth, I’d recommend at least getting a consultation from them first.