The way you laid everything out here makes it seem way worse than it actually is. Yes they sell a lot of crap that really shouldn't be in the cash shop but most of it isn't needed to be very successful in the game. I know because I play and have full pen. I go back every now and then with some of the bigger updates.
The weight can be considered p2w depending on what you do. Maids are kinda irrelevant unless you're starting out today. I have 10+ maids, 2 of which I bought at discounted rates. The rest were handed out by PA themselves. I have t4 pets, hedghog etc which was all free.
Premium horse? wat? Doesn't exist unless you're talking about skill re-rolls which good god why the hell would you bother.
Tent is def p2w and it's probably the only main thing besides the value pack that you actually "need". You can get a free tent but it isn't as good. A lot of people survive without the value pack by simply farming for ages and then buying the 1 day value pack with loyalty (which you get for free) and shoving all their stuff on the market with the 1 day they have for lower tax.
Costumes get handed out for free every now and then. You don't need the ones from the pearl shop but if you want one you can get one through pre order. If you're early game don't expect to earn as much as someone who has played longer. I can make 200+ mill per hour easily and a costume set is 300m. That doesn't take a week of grind at all. Even someone without my gear can earn that in less than a week. Casuals can and do earn 1bill a week easily. You can do this without grinding any monsters. Can just life skill if you want.
With that in mind you can practically forgo the whole rng enhant system and buy the gear you need over time. I have for the most part.