Ahh the joy.. Finally twink equipments again
I think you're going to do pvp with him? Since I see the Pump Master
Anyways, if that is the case... There is a LOT to be done on that setup
First of all: NCU. Traders at that level are NCU hogs, but.. Luckily, the ev0l traders get CompLit buffs. At level 14 it is possible to put a 6slot belt on at a fr00b troxtrader, with ql125 mems. I know, I know, it is a pain, but for you to be good you'll need to get on a 6slot belt

If you decide to twink your NCU for a bit, send me a tell on Lupusceleri ingame and I'll try to explain you what/how to do it

I did it myself on my L14 troxtrader Theseskullz... Too bad I'm too lazy to finish imps and stuff on him now, but I think you can blame AI SL for that

(Also get: Collar Casero de la Cripta, and a Ring of the Nucleus Basalis in the +20 NCU form

) In short, 4 slot belt is peanuts for a trader at that level. (I did that on a level 8 fr00b opifex fixer ^^)
The Pump Master looks good, but I want you to note that it is a very expensive weapon... Instead, you can go and get totw weapons like Frost Scythe of the Legionnaire or Energy Scythe (the last if you don't want to spend much effort into getting the FA req). Armor looks good as well, might want to get a CAS helm for the looks 8)
And last but not least, may I recommend the
Modernized ICC Bodyguard Cloak to you as a back item?
I can name a LOT of other suggestions on this setup, but there's no use in that now... Should you have any questions, again, feel free to ask them to me
//Alpha