I bought the Craftics #33 which came in a 1.5 oz tube with applicator tip for $6 (like $3.50 elsewhere online).
From what I've read, Weld-On #4 is the consistency of water which might be a recipe for a mess, especially with a first-time user. This was my first time working with acrylic so I definitely recommend a thickened acrylic cement such as this Craftics #33. Was very easy to use & cures very quickly.