Small main board ideas

[Ratzkie]

Does anyone have any suggestions for a small main board to use in a custom setup? I'm giving a mech marker an e-grip, which means I have limited space. I would like to have the option of full auto, understanding that I will have to figure out how to put eyes in as well.
Originally, I was hoping to use the Sci-Fi board from J4, but its just a little too large (still, 3d printing a copy of the board to check for sure atm)
I was also looking at an Etha board, but was informed that the stock board has no FA.

The other option is to just throw money at the problem- if I can find one, I could throw ~ $125 (rough ebay price) at an APE Etha board and have everything I want, except for money left in my wallet. I also saw an APE SFT board on ebay, but the daughter board for the Shocker/SFT is not available anywhere- I spent a couple hours looking last night.

Any other ideas? I don't have any ideas what else is out there.
Thanks

[Knuckle Dragger]

Tippmann or old Kingman era boards? Virtue made a board with a spot to add eyes for Spyders. Think a member here was selling a Virtue board before the crash. Not sure if dwell and a clapper is important for your build.

[grendal50]

Maybe find an e-grip cartridge for a PCS US-5 It's got a solenoid, board (semi, 3 shot burst, and full) and battery harness, all in a small-ish cartridge.

[Ratzkie]

Thanks for the ideas guys.
I bought the Etha 1 board before I knew it was semi only, and was unable to cancel it. I decided that the cheapest route now is going to be just adding a 555 chip and a few other small parts to make a trigger board it to replace the regular semi, and add a switch to change back and forth.