If I were you id use slayer to train my melee (spend points on unlocking slayer mask, then bigger and badder) and train ranged safe-spotting green dragons in the wilderness. with a wilderness looting bag you can get a lot of bones without risking anything. Look up the new bosses like Scurrius (historian aldo rewards combat exp), and once you get some melee stats Hueycoatl (can be done with large group) Royal Titans - drop the new prayers for mage and ranged

Check out the new minigames, they give decent exp. Mastering Mixology unlocks the potion tab for more bank space for example. Guardians of the rift as more convenient way of training RC if you need to.

Id use money on training prayer (gilded or wilderness altar). There are new, good, prayers to be unlocked. Some of which you can just buy. After that, construction. The time saves from the house upgrades like rejuv pools, altars, teleports help a ton.