If those are really your 5RMs, then the weights you suggested are too light. Pick weights that you can make for 3x5 with good form while doing some work. What have you read that suggests you hit your old 5 RMs on the 4th to 5th week? My guess is that it wasn't something written by Rip. Beginners won't have 5 RMs and shouldn't try to find them. If you must have a number, consider taking 90% of your 5RMs and starting there. Don't quote me on that or say that everyone should find their 5 RM and multiply it by 0.9. For deadlift, that may be too light. See how things go. Start conservatively and make weight jumps as appropriate. The only way to really do this correctly is by feel.