Cheat. Honestly, do that or there is NO WAY you can buy more than one or two of the 100+ gold items available, and there are a lot of those around. Find a way to get the developer console, I can't link that from this computer, and then runscript zz_money 10000000000
Bam, done. It's a game of limited experience - naturally hitting level 25 is near-impossible I believe - and woefully limited funds. So roleplay that you found a huge pile of gold, and cheat. It's great having the fun stuff, but not so great having it so easy. Raise the difficulty if you'd like.