My Plan: And I'd love opinions of whether or not this is a decent plan currently.
Since have been having trouble getting to the gym lately, I don't really want to do a Upper/lower split. Therefore, I intend each workout to be a full body workout revolving around the big complex lifts. Each workout will have a main focus and heavy lift (Bench, Squat, DL, maybe Overhead Press). For the Main lifts, I plan to use the 5/3/1 schema and follow it up with a variation of the same lift with lower weight and more reps (aka BBB) and less rest time.
After the main lift, I will do a minimum of two more lifts to complete the full body. Using last nights workout as an example, main lift DL, then a Upper Body Pull and Push to complete the Full Body workout. These other lifts will vary based on the main lift, time I have left, equipment availability. Mainly, these lifts will be in the 6-12 rep range with short rest periods similar to a WS4SB template. I may even throw some complex routines in as the supplement to the main lift to round out the Full body workout.
Cliff, you don't say how frequently you plan to train but you suggest that it might not be regular. In this case I strongly support full body workouts. A squat and/or a deadlift followed by an UB push and pull Should always be your "go to" workout. I don't think 5/3/1 is a good idea for an infrequent or inconsistant workout schedule. You would be better to just do 3x5 to ensure that you get both sufficient volume and intensity to carry you through to the next workout. I think it will be hard to see progress on a 5/3/1 if it's too long between workouts.
You probably should add a body weight circuit as a daily routine that you can do at home. This will help sustain your conditioning between workouts.