Shooting accessories and aids !

Oh hey ! I recently asked y'all what would be the best affordable air gun to get to start out target shooting and see if it's my thing... And unfortunately got swayed away from what was recommended and got a LOV 21, people really love that gun here.

Long story short, buying it in the EU went without any issue and the little guy should show up tomorrow but in order to save on shipping and transaction costs I decided to source it more locally. In regards to pellets I'm thinking about going for a JSB Test tin, the 3 things I'd like a bit of advice on are cartridges, pellet traps and maintenance tools.

Cartridge wise: in terms of lubrication, most companies seem to indicate that you should use one lubricated cartridge for every 10 cartridges, does that sound right to you guys ? Should I do it more often, or not at all and rely on separate canned lubricants ?

Pellet traps wise: it's really a matter of shape and material. I want something that holds an ISSF 10m pistol target obviously but I'll be shooting indoors and it's likely that I'll put it on a door which I do not want to damage. I don't think a meshed back will be enough (I'll be shooting .177 at a maximum of 400 fps) and I've seen a lot of different designs at a lot of different price points. I'd like a recommendation on this one because I don't want to have to explain to my roommates why one of our doors is dented hahaha

Maintenance tools : now it's a bit of a tricky one for me. There's so much stuff out there and so many different ways to go about it but I want to try and get as right as possible from day one. People have successfully kept LOV21s in full working condition for decades and I want to be one of them. I mentioned cartridges earlier but if there's anything that would be good to have in order to keep the gun as long lasting as possible, I'd like to know (cleaning brushes/rods ? Spare seals ?)

Thanks in advance, "that one newbie who overthinks everything"