I realize that we/I am on a 4runner specific website, looking at feedback for specific bumpers... but is the market for these aftermarket bumpers really that small?
I worked in fabrication shops for the last 10 years. I have dealt with similar products, designing, r&d, on small to large industrial scales and demands. It is pathetic that some of these shops, build stuff on a 3-6 month delay. I recently had bumpers built for my truck by a local guy. He is just starting out, and it took him 2 weeks to get mine done, and he had to build a JIG for the damn things in the process.
No offense to any of the mainstream bumper builders for these trucks. However, in the process of choosing who I had do mine, I spoke to 4 shops in total. One of them flat out told me they had zero bumpers being built, zero materials in house, but he was ordering all the material AFTER the black friday sale ended. Who runs a business that way?
2 of the 4, told me they would get it done/had one on the shelf within 72 hours. I ran the machine making the parts for all my employers, in all cases it was poor time management that would put me/the customer under the gun. There isn't much of an excuse for a small time company, making someone wait 5 months for a damn bumper that comes BARE steel.
Can't blame it on anyone but yourself at that point. Especially when your grinding out the same product day after day, or month after month.