are they that important ?
No but maybe aim to collect 1150, this will give you a master piece. If you collect all Master pieces you will get a lot of gold. How long it takes? Hard to say but it’s nothing you should aim to achieve in a short time or you will burnout. Chill and do a couple on a weekly basis. There are a lot of seeds you can not obtain instantly. Use maxroll or papunika website for details