The best way to defeat nomads is to OSRS gold use magical crossbow bolts. Then make use of your unique attack using an assault weapon, in particular one that is a godsword, as it will weaken his defense.
The most recommended familiars are and the best way to do this is to use the beast of burden to carry extra supplies in then dismiss that familiar, dropping your potions etc onto the floor and summoning a kyatt using the special attack frequently on nomad. Kyatts are generally thought to be highly helpful, perhaps more than most familiars. Correct me if I'm wrong. My advice is mostly based on anecdotes and therefore could be wrong, but it's better than nothing.
I am aware that great orb is available for f2p, but I was wondering what rewards are only mems and if rc 50 is sufficient to go around playing it. Additionally, is the RC staff reward available as f2p? If yes, are there any benefits in obtaining one? It's more than enough, but higher runecrafting makes it easier to attract and repel orbs more quickly and helps you achieve more exp if not wrong.
And yes some talisman staves can be found F2P, and give you an enormous 15+ magical defense bonus (more than all other F2P personnel), 33 Strength bonus and allow you to access RC altars just like tiaras (ex with the Fire Talisman staff, you are able to use the altar for fire).
It's still the best gear that's not too costly, I would of told you to consider a cls/dfs/cls for bands but didn't expect that you'd get the funds or need to invest in a chaotic. I'm looking for a yak, however I'm using a pony equipped with overloads plus turm. It's your top non-professional equipment right there. If you plan to do lots of alone'ing, then you'll be able to cheap OSRS GP earn the cash you spend pretty easily.