You can do the first quest when you have Equip weapon(RF online gold) and go level up outside the town, kill Young Flem, Wing, DeserKlan and you will quickly reach level 4. Then, the system will inform you that there is a new quest for you, but you can ignore it and just focus on leveling.
So you can wear your level(RF powerleveling) 4 equipment, cross the bridge, kill Flem and Heavy Wing to move to level 7. After putting on level 7 equipment, you'd better go back to town and buy more potions. Then, go deep into the map to do quest. After crossing Heavy Wing zone, go straight forward, you will soon find SplinterBrat to kill. Then, you can kill Host Mahr. You will reach level 10 in a while.
And you are no need to hard PT grinding in RF. Focus on killing monsters and your PT will be basically enough. May be you are wonder about earning money. You need to Level beside HQ and sell all the items as soon as your bag is full. When you have three bags, you will have enough space for your items. You will receive a bag when you fulfill level 4 quest, so dont waste your money to buy the fourth bag.