Breeding to 500

My goal is to have a team of hunters with 500 in each relevant stat. I would like to avoid major lines (Sunfall, Faelor, Emperor, etc) although my stalker line does have Toshiro currently as most wolves with high stalker stats do. 

I would love to go through my thinking with people who are breeding for a similar goal. I have a bunch of very rough calculations that I use, so let me know your thoughts. 

Gains from Leveling

On average, the wolf will gain 120 in each favored stat from level. 

Gains from Hunting 

Assume you start training at 1 year old and then breed at 7 years old 

6 years of hunting x 24 rollovers/year x 10 hunts/rollover  = 1440 hunts from 1 year to 7 years

1440 hunts * 1 point/5 hunts = 288 gains from hunting? 

Alternative calculation based off gains per day, not per hunt: 6 years x 24 rollovers x 2 gains per rollover = 288

For chasers and stalkers, this will amount to ~144 gain in each stat. For finishers, the 288 will go entirely to strength.

Therefore: starting point to get to 500

Stalkers: 500 - 120 (leveling) - 144 (hunting) = needs to start at 236 in each

Chasers: 500 - 120 (leveling) - 144 (hunting) = needs to start at 236 in each

Finishers: 500 - 120 (leveling) - 288 (hunting) = needs to start at 92 (I'm not 100% convinced on this) 

Breeding to reach that

My rough estimation is that a pup's stats are 23% of the sum of the parents. So to reach 236 for example, the sum needs to be ~1030 or roughly 500 in each for the parents. So to reach 500 you need to start with parents at 500. Yikes? Here is a worksheet of my rough estimations. The assumption is that the wolf will receive 120+144 = 264 stats in its lifetime and will be bred to a wolf with the same stats. The reason for the second assumption is I wanted to figure out if I started with a set of NBWs and built up the generations to get a non-inbred line, how many wolves would that take? 

This is where I need help.  The stalker/chaser calculation is either very off OR it's going to be very difficult for me to get 500 stat stalkers/chasers. Which might be the point! If you start with NBWs with ~40 in each stat, and bred with my above assumptions, there is an asymptote around 224 stats which you reach in the 8th generation. You start getting diminishing returns after the 4th generation. I have pups born around 140-150 now, although it took 3 generations but maybe it's because the first generation wasn't bred at 7 years old (as the spreadsheet assumes). So if this is all correct, it is very difficult maybe close to impossible to have a stalker or chaser with 500 in each stat. Please check my math! 

I did the same calculation for finishers and once again, after around the 4th generation the increase between generations slows and reaches an asymptote around 347 at the 8th or 9th generation. 

Spreadsheet

How many wolves for a complete non-inbred pup

That's the last column in the spreadsheet, how many unique wolves are need to create the next generation. G2 is simple: two unique wolves (the parents). G3 is also straightforward: each parent has two parents that have two parents, so 4 unique wolves per parent for a total of 8. This creates a pattern: 2^generation. So to reach the 8th generation with absolutely no inbreeding you need 256 unique wolves that were all trained every day from 1 year to 7 years old. I think this would be extremely difficult for one person to do. 

So what's the point

I might be giving up on my dream of 500 stat stalkers and chasers, and will have a difficult time not-inbreeding soon. If anyone would like to work with me in order to train up 256 unique wolves to get a fully non-inbred stalker, chaser, or finisher, let me know. 

~Note: I did not consider using lead wolves and their stat gains in any of these calculations~