Is this 50k in addition to other items you are giving said warrior, or do you have 50k to spend and no pre-existing items? My post will assume the latter, you have 50k and no other items. I am also assuming you are on blue.
If you have 50k, spend it on a Fungi Tunic. That is the best thing you can get for soloing 1-50. Since you have 50k I assume you have a high level character. This means you can farm some more plat for your weapons.
To answer your weapon question,
https://wiki.project1999.com/Reaver is generally one of the best leveling weapons for any class that can use it. For levels 1-30 when you have the damage caps, buy
https://wiki.project1999.com/Venomou...e_Velium_Brood for it's good ratio and 75DD that can proc at level 1. When you can start dual wielding something like
https://wiki.project1999.com/Fist_of_Zek is cheap and pretty good for offhand. Some people get
https://wiki.project1999.com/Wrapped..._Serpent_Spine for low level grouping (myself included) as it also procs at level 1, but mobs die very fast 1-30, so you probably aren't going to proc that weapon much while the mob is alive lol.
Once you hit 50, get 2x
https://wiki.project1999.com/Blood_Point and a
https://wiki.project1999.com/Truncheon_of_Doom if you plan on soloing in your 50s.
Also make sure to get a haste item, obviously. If you want to be cheap
https://wiki.project1999.com/Silver_Chitin_Hand_Wraps or
https://wiki.project1999.com/Flowing_Black_Silk_Sash is the way to go, depending on how you want to fill out the hand/belt slots.