KiNK43

I think it will be luck of the drawer.. Depends on manufacturer and storage aswell whether they've been stored well not stacked upon etc. Only experience I have, I needed a new bonnet for my last civic. 75 quid brand new aftermarket part. Was perfect. Couldn't fault it one bit. But I think if you could test fit before committing to paint would be beneficial. Or as you say used originals from a rap yard. They don't tend to rust on the front so should be able to find a good set easily enough

96 spec has 262mm fronts on 4x114 hubs. 98 spec has 282mm fronts but are on 5x114 hubs.

Just a normal skunk manifold. Think they call it a pro or something. Itr rep basically. And dual valve springs will help prevent valve float at high rpm. So can safely push towards 9k redline. C4 already has them on intake but not exhaust valves. Doesn't have to cost alot. Keep eyes peeled on Facebook etc get some good condition 2nd hand parts.

The setup I described in your other post is a sensible budget setup. You won't achieve a huge amount more n/a unless you look at going high comp and/or itbs. Which is gonna cost a packet. In which case boost is better value imo. If your on a budget and want a little more. I'd look for a skunk intake manifold. Some type r or skunk cams. Dual valve springs will be a good idea can safely raise the rev limiter a bit. A larger throttle and a decent exhaust setup. And a p28 to tune on.

I'm familiar with this issue. I temporarily ran another sandwich plate behind the thermostat. But settled on using a Chinese thermostat with 4 connections 2 on the side like mocal and 2 at an angle. Don't be put of was made nicely and worked fine. This one to be precise...