For example, it’s impossible to place a check box directly next to a text field. Fields tend to populate the form one on top of each other. If there is an easy way around this, please share. Otherwise I’m willing to pay.
if i understood well you may want to do a custom field type
to check if this is what you want have a look at the following tutorial
that will give you grate control over how you field is displayed.
but it’s maybe too heavy for what you are trying to do.