No uniform realisation is possible.

Incidence matrix according to Dynkin symbol

x3β3x4β

both( . . . . ) | 384 |   1   1   1   1   1   1 |  1  1  1  1  1   2  1   2 |  1  1  1 1  2
----------------+-----+-------------------------+---------------------------+--------------
both( x . . . ) |   2 | 192   *   *   *   *   * |  1  1  0  0  0   1  1   0 |  1  1  1 0  1
both( . . x . ) |   2 |   * 192   *   *   *   * |  1  0  1  1  0   0  0   0 |  1  0  1 1  0
both( . s 2 s ) |   2 |   *   * 192   *   *   * |  0  0  0  0  0   2  0   2 |  0  1  0 1  2
sefa( x3β . . ) |   2 |   *   *   * 192   *   * |  0  1  0  0  1   1  0   0 |  1  1  0 0  1
sefa( . β3x . ) |   2 |   *   *   *   * 192   * |  0  0  1  0  1   0  0   1 |  1  0  0 1  1
sefa( . . x4s ) |   2 |   *   *   *   *   * 192 |  0  0  0  1  0   0  1   1 |  0  0  1 1  1
----------------+-----+-------------------------+---------------------------+--------------
both( x . x . ) |   4 |   2   2   0   0   0   0 | 96  *  *  *  *   *  *   * |  1  0  1 0  0
      x3β . .   ♦   6 |   3   0   0   3   0   0 |  * 64  *  *  *   *  *   * |  1  1  0 0  0
      . β3x .   ♦   6 |   0   3   0   0   3   0 |  *  * 64  *  *   *  *   * |  1  0  0 1  0
both( . . x4s ) ♦   4 |   0   2   0   0   0   2 |  *  *  * 96  *   *  *   * |  0  0  1 1  0
sefa( x3β3x . ) |   4 |   0   0   0   2   2   0 |  *  *  *  * 96   *  *   * |  1  0  0 0  1
sefa( x3β 2 β ) |   4 |   1   0   2   1   0   0 |  *  *  *  *  * 192  *   * |  0  1  0 0  1
sefa( x 2 x4s ) |   4 |   2   0   0   0   0   2 |  *  *  *  *  *   * 96   * |  0  0  1 0  1
sefa( . β3x4β ) |   4 |   0   0   2   0   1   1 |  *  *  *  *  *   *  * 192 |  0  0  0 1  1
----------------+-----+-------------------------+---------------------------+--------------
      x3β3x .   ♦  24 |  12  12   0  12  12   0 |  6  4  4  0  6   0  0   0 | 16  *  * *  *
      x3β 2 β   ♦  12 |   6   0   6   6   0   0 |  0  2  0  0  0   6  0   0 |  * 32  * *  *
both( x 2 x4s ) ♦   8 |   4   4   0   0   0   4 |  2  0  0  2  0   0  2   0 |  *  * 48 *  *
      . β3x4β   ♦  48 |   0  24  24   0  24  24 |  0  0  8 12  0   0  0  24 |  *  *  * 8  *
sefa( x3β3x4β ) ♦   8 |   2   0   4   2   2   2 |  0  0  0  0  1   2  1   2 |  *  *  * * 96

starting figure: x3x3x4x