I have a couple Okumas, a convector & Catalina Line counter. If you don't mind the weight, the Catalina is really nice and the line counter's fun. I don't get on a boat much, so can't say about life-span. They don't cast worth fudge so I don't use them a lot. 300 yds 80# Tuffline.
For conventionals, West Shore's had a disc. open frame Quantum Cabo PT trolling reel in the larger size, now at a good price, and they've got a Diawa Sealine X-HSA 40, priced well. I use that and the size 20 shore casting & they've been good and they take a beating. You just have to be careful with the centrifugal weight-blocks when you open it up. They can fall off fairly easily. Light reels, very easy to maintain. The cranking ratio is I think 6:1. Nice for moving around. The 40 would hold about 300yd 80# Tuffline. The drag's great but not up to the Avet nor the Penn 525. Those stop a truck.
If you googled Penn Baja, they're discontinued and you can get a good deal for a tank of an open conventional. 300+ yd 80# Invisibraid, high narrow frame with 5+:1 ratio and a huge drag. Well-made fast-retrieve reel with guts. For its intended surf-casting purposes, it needed to be mag'd like the 525. I'm not good enough to keep it under control, so it'll go bottom fishing until I can get the mag job done.
I've used a C3-7000 for halibut to 50#, but don't know how the drag would be over that... never caught one bigger. I mostly cast with those reels too. they hold 300yd 65# Stealth. Now made in China, I've replaced the disks once and fixed the clicker. I use one of those reels every week shore-casting & the drag gets an extreme workout from the snags, bent & snapped a 6/0 octopus Eagle Claw last weekend, with the help of 2 thumbs.
Great reel.
Have fun shopping