There are two other things to consider for your Beechcraft.
1. Purchase the model 33 shop manual. An A&P who has no experience on a Beech craft will be very appreciative of that manual. I have encountered experienced A&Ps who thought they knew how to fix a Beech part and were very wrong.
2. I would obtain a Grainger parts catalogue. Over the years, I have found that purchase of a Beech part such as the gear warning switch which is attached to the throttle is very very very expensive when purchased from Beech.
But, if you examine it closely, you can take the device apart and repair it with a brand new switch from Grainger.
Tom