I was going to do this a little while ago but this is how the system works on SWRP. You can ask to be taken to the item room or whatever they want to call it from there you can see all the props that can be purchased and the prices for them, you then pay the executive who will spawn and perma prop it as you wish, they will then dispose of the money by putting it somewhere that cannot be accessed. Credits are the currency of SWRP just like $ on US, we don't trade in actual AFK credits for those who have not played.
This is what the item room looks like on SWRP.
Overall, +1 if done properly it should not cause any lag but will improve the aesthetic of the server and respective F.O.B.