As far as the ratchet straps. I've come to like them.
Our local equipment auction has been listing a few blue colored 2" ratchet straps that are rated as 2,500 kg (a little over 5,000 lbs) working load. They're trying to list them as 5 tons which is annoying. Anyway, the straps themselves are heavier than the ordinary 3300 lb straps. However, the ratchets don't seem that different.
Double the straps into a circle, and one has double that, or 10,000 lbs working load. And, I always like to have at least 2 straps in any direction on a load, so they're strong enough for most ordinary vehicles.
There are 4" ratchets that have a higher load rating, but I haven't started using them. They just seem awkward.
27 to 30 feet seems a bit long, but there is always something that a couple of feet longer would be nice for such as lengthwise over the top of my load. If you do a loop, then the length is half that. Cut down the length if you wish, or simply tie down the excess. Or if you have enough strap, go back to the load for a second loop.