Decided to invest in a full set of plastering trowels,tools etc but not sure what size trowels I should get and what other tools I should buy. I have plastered before to an ok standard using cheapo trowels but they have gone rusty and pitted so thought about buying stainless steel. I will be doing several ceilings and walls as I go from room to room in my house. So I'm looking for for either a full set or seperate mid range items items at reasonable price can anyone recommend sizes of trowels,which tools and the best places to buy.