First off CONGRATS

Gotta love having your own plane in your own hangar at your own strip
A couple thoughts.. Don't know if you've been to Timberon before, but in case you haven't, I wouldn't get overly concerned about staying legal… The corridor coming from the El Paso side is so narrow your right wing will literally be over the road until you get to Alamogordo, then it's up the southern drainage straight east of ALM till you intercept the road to 52NM. I have owned a couple spots on the strip there since long before GPS, and never given getting there a second thought. I also can't remember the last time I was given the OK across the range

which coming from my side would make life a TON easier / quicker.
Also, bear in mind that the strip in Timeberon kinda sits in a bowl. That means repeated ops echo like no tomorrow… This sound is not likely to be offensive to you or I, but the pilot owners at Timberon are the extreme minority. Ton's of people live adjacent to the airstrip that would just as soon see it become a park.
And lastly, don't put too much stock in any 'density altitude practice' you do at Timberon unless your practice schedule is four months out. Just shooting quick numbers from the hip, if you were there this saturday at NOON, the DA at the field is still going to be 900' below field elevation… Not much of a challenge there for even a Tcart or J3.
Take care, Rob