Need list assistance with building a Krieg army (500/1000)
So as a custodes player that just found out my decent sized army now has me with more points than I know what to do with, I want to fast track building the army of my first love that I like to call "Krieg death riders makes me feel things under my gas mask".
Why do I have an absolute adoration for dudes in gas masks on horses (also in little gas masks)? I have no idea but I got it bad. While a bunch of people flood into cheap custodes I want to use my sudden points abundance and go for an army I originally desired but second guessed due to cost.
I am hoping to build an army that works at 500 and 1000 to start so I can work up in size and play a bunch of games while I go (I have no idea why people feel the need to rush to 2000 in their first day). Where I need help is understanding the best way to incorporate some pony boys while still remaining decently competitive and covering my bases because I'm coming from an army that couldn't be less alike.
I figure drier + 10 death riders fulfills my needs, a unit of Krieg to hold an objective and a leman Russ to deal with scary stuff? I don't know what else I should add to hit 500 to synergize as I'm new to guards? What would you then do to expand into 1000?
I would love to keep with the Krieg theme as much as possible (can you get ogryn with little masks?) because I love the aesthetic but I recognize that they don't always provide the solutions. Also does anyone have advice on where to acquire stuff without buying piecemeal from my local shop or gw? Do I just try to find a Krieg army set with the horses and the siege one then add a couple tanks?