A few observations...
1) If you had "several occasions where [you] could've lost everything", it shows your RoR is too high.
2)I disagree with the above-post about scholarships. First off, this isn't a scholarship--it's a loan. If you've already paid for school (or you've budgeted for school), this is a cheap way to "borrow" money. My one caveat is, you're getting into a shade of grey where you can easily cross over to letting your bills lapse just to have an extra few dollars to pad your bankroll.
3) I disagree with the loanshark comment too. As an investor, I don't think the interest is so high, especially considering that investor could have lost everything on several occasions, and especially on an unproven counter (notice why he needed to borrow the money)--aka. risk.
4) Lower your betting units or at least Kelly-down if you lose a significant chunk of your bankroll.
5) At 50k, you should have more than enough money to buy a bargain ticket and fly to Reno/Tahoe, Louisiana, Mississippi, or any number of places. You shouldn't be concerned about not having enough venues. Just order Trackjack or CBJN and hit the road. ;-)
Good luck on your endeavor~
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Actually I meant to say I started out with 5k and my friend also had 5k. We were using a 75 betting unit and we up to a total bankroll of 16k when we got crushed and went down to 5k total. I then took on an investor for 30k over six months and paid him 6k in interest, signed contract and everything. This was in mid July. We went to Vegas on our first trip with 200 units (150 betting unit). After having several occasions where we could've lost everything and by late August my bankroll was down to 12k, I started to use 300 and then 400 units instead. There's some really good casinos here in San Diego and I started going about 2-3x a week for 2-4 hours a time. By the beginning of December my bankroll was 44k. Since then, I've made an additional 38k and returned my investor's 36k. My bankroll is at 55k because I qualified for some student loans because I'm an electrical engineering student at UCSD. I've made 50k including the 6k in interest I paid to my investor. And now I'm on my own, employing my friends at times as spotters in Vegas. I've lost over 10k on a single shoe three times and have had winning days of over 8k about 6 times. I've had A LOT of fluctuations but have never lost more than about 250 units. So I have 550 units now (with a 100 betting unit going up to 800 per hand). I'm now looking to play some more areas because I've used 3 ID's already at some Vegas casinos and want to expand out.