Also, as I understand it the Totemist capstone ability is so amazing that you'd generally want to refrain from dipping, especially only four levels.
Totemist has 3 cutoff points: 2nd, 4th, and 20th. Each of those levels provides a very good exit point. If you take more than 4 levels, you really should consider going all the way.
and lets be honest 20 levels is a loooong way and its not guaranteed that we ever get this far.
In this case, stick with Totemist for as long as it seems useful, then start dipping when you need different abilities that Totemist Soulmelds can't offer you. However, keep in mind that Maneuvers (and sometimes Stances) can be obtained through magic items, which are very easy to work with even with the restrictions placed on your slots by Soulmelds.
Recommendations: Ditch the Ranger and Slimelord levels. If you Dip scout, you will be using the Manticore Belt (it's fraggin required). Ergo, Strikes won't be of much use to you (the Manticore Belt's attack method is similar to initiating a Strike; the two can't be combined into a single action).
The reason for ditching Slime Lord is that, IIRC, the Paralysis only functions as long as your Psuedopods last (which is a few rounds last I checked), so you only get the Con damage 1/day. There's a better way to go about this (Thayan Gladiator), but it requires you to not be Humanoid (so Skarn is out, which removes one of the best options).
Warblade levels make Totem Rager much more appealing. If this interests you, drop Scout for a level of Barbarian. Warblade gets you some of the skill requirements, and the single level of Barbarian is worth that. If you are starting out at 1st level, I recommend taking Totemist or Warblade first, and playing a race that has a natural weapon. If starting above 2nd level, Barbarian or Warblade first for max HP and play a race that gives a Con or Str bonus. Barbarian can get you Trapfinding through an ACF.
For healing, Martial Study/Stance for the Crusader stances. You'll be healing an average of 12 damage/round, give or take AoOs and attack bonus.
Really, there's a couple of ways to take this build. What do you want to do most, and what does your party look like?